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Finding the Third Proportional to 8,144.30 and 15,331.78

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Solution

The third proportional to 8,144.30 and 15,331.78 is: 28,862.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,144.30 : 15,331.78 = 15,331.78 : x
  2. Step 2: Convert to fraction form
    8,144.30/15,331.78 = 15,331.78/x
  3. Step 3: Cross multiply
    8,144.30x = 15,331.78 × 15,331.78
  4. Step 4: Simplify right side
    8,144.30x = 235,063,516.30
  5. Step 5: Solve for x
    x = 235,063,516.30/8,144.30
  6. Step 6: Final answer
    x = 28,862.35

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Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.