SOLUTION: Find the missing numbers. 18,22,_,27 Average=22

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Question 899809: Find the missing numbers.
18,22,_,27
Average=22
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
Find the missing numbers.
18,22,_,27
Average=22
.
Let x = missing number
then
(18+22+x+27)/4 = 22
18+22+x+27 = 88
18+22+x+27 = 88
x+67 = 88
x = 21