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Finding the Third Proportional to 15,375 and 33,839

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Solution

The third proportional to 15,375 and 33,839 is: 74,476.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375 : 33,839 = 33,839 : x
  2. Step 2: Convert to fraction form
    15,375/33,839 = 33,839/x
  3. Step 3: Cross multiply
    15,375x = 33,839 × 33,839
  4. Step 4: Simplify right side
    15,375x = 1,145,077,921
  5. Step 5: Solve for x
    x = 1,145,077,921/15,375
  6. Step 6: Final answer
    x = 74,476.61

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.