Adelaide - Australia won their Davis Cup qualifier against Bosnia and Herzegovina 4-0 to secure a spot in this year's 18-team final in Madrid.
The Australian doubles pair of John Peers and Jordan Thompson defeated Mirza Basic and Tomislav Brkic 7-5, 6-1 on Saturday on hard courts at Memorial Drive to give the home side an unbeatable 3-0 lead.
Alexei Popyrin, in his Davis Cup debut, followed with a 6-1, 7-6 (7/2) victory over Nerman Fatic.
The fifth match was not played.
On Friday's opening day, John Millman and Alex de Minaur gave Australia a 2-0 lead.
Millman defeated Damir Dzumhur 6-3, 6-2 and de Minaur followed with a 6-3, 7-6 (7/0) victory over Basic.
Under the new Davis Cup format, the best-of-three matches were played over two days.