Afghanistan beat Ireland by 22 runs, leaving the Irish leading their Twenty20 series 2-1.
Fifties from Balbirnie and Tucker set up the chase, before Dockrell and Tector added the finishing touches.
South Africa wrapped up the white-ball leg of their tour to the UK with a second T20I series win after sweeping Ireland 2-0.
Half-centuries from Reeza Hendricks and Aiden Markram helped South Africa to a 21-run win in the first of two Twenty20 internationals against Ireland.
Ireland have announced their squad for the two T20Is against South Africa as well as against Afghanistan in August 2022.
Ireland were propelled to 174 by Mark Adair and Curtis Campher unbroken partnership of 58 from only 23 balls.
