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Finding the Third Proportional to 7,281 and 17,115.75

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Solution

The third proportional to 7,281 and 17,115.75 is: 40,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281 : 17,115.75 = 17,115.75 : x
  2. Step 2: Convert to fraction form
    7,281/17,115.75 = 17,115.75/x
  3. Step 3: Cross multiply
    7,281x = 17,115.75 × 17,115.75
  4. Step 4: Simplify right side
    7,281x = 292,948,898.06
  5. Step 5: Solve for x
    x = 292,948,898.06/7,281
  6. Step 6: Final answer
    x = 40,234.71

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.