Finding the Third Proportional to 18,651.75 and 19,866.75
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Solution
The third proportional to 18,651.75 and 19,866.75 is: 21,160.90
Step by Step Solution
- Step 1: Write the proportion equation
18,651.75 : 19,866.75 = 19,866.75 : x - Step 2: Convert to fraction form
18,651.75/19,866.75 = 19,866.75/x - Step 3: Cross multiply
18,651.75x = 19,866.75 × 19,866.75 - Step 4: Simplify right side
18,651.75x = 394,687,755.56 - Step 5: Solve for x
x = 394,687,755.56/18,651.75 - Step 6: Final answer
x = 21,160.90
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These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.