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Finding the Third Proportional to 7,439.25 and 15,645

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Solution

The third proportional to 7,439.25 and 15,645 is: 32,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.25 : 15,645 = 15,645 : x
  2. Step 2: Convert to fraction form
    7,439.25/15,645 = 15,645/x
  3. Step 3: Cross multiply
    7,439.25x = 15,645 × 15,645
  4. Step 4: Simplify right side
    7,439.25x = 244,766,025
  5. Step 5: Solve for x
    x = 244,766,025/7,439.25
  6. Step 6: Final answer
    x = 32,901.98

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.