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Finding the Third Proportional to 15,690 and 24,645

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Solution

The third proportional to 15,690 and 24,645 is: 38,711.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690 : 24,645 = 24,645 : x
  2. Step 2: Convert to fraction form
    15,690/24,645 = 24,645/x
  3. Step 3: Cross multiply
    15,690x = 24,645 × 24,645
  4. Step 4: Simplify right side
    15,690x = 607,376,025
  5. Step 5: Solve for x
    x = 607,376,025/15,690
  6. Step 6: Final answer
    x = 38,711.03

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.