Finding the Third Proportional to 21,559.50 and 28,971
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Solution
The third proportional to 21,559.50 and 28,971 is: 38,930.35
Step by Step Solution
- Step 1: Write the proportion equation
21,559.50 : 28,971 = 28,971 : x - Step 2: Convert to fraction form
21,559.50/28,971 = 28,971/x - Step 3: Cross multiply
21,559.50x = 28,971 × 28,971 - Step 4: Simplify right side
21,559.50x = 839,318,841 - Step 5: Solve for x
x = 839,318,841/21,559.50 - Step 6: Final answer
x = 38,930.35
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Why These Related Problems?
These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.