SOLUTION: Identify the means and extremes, then, find the missing terms. 4:5 = 24:x

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Question 1191821: Identify the means and extremes, then, find the missing terms.
4:5 = 24:x
Found 2 solutions by josgarithmetic, greenestamps:
Answer by josgarithmetic(39625) About Me  (Show Source):
Answer by greenestamps(13203) About Me  (Show Source):
You can put this solution on YOUR website!


I am not a fan of this terminology; but....

In the proportion A:B = C:D, the extremes are the numbers "to the extreme outsides of the proportion" -- A and D. The means are then the other two numbers -- closest to the equal sign, B and C.

The unpleasant rule is then "the product of the means is equal to the product of the extremes": BC = AD.

ANSWERS:

(1) In the given proportion, the means are 5 and 24; the extremes are 4 and x.

(2) 5*24 = 120 = 4*x --> x=30