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Finding the Third Proportional to 16,881 and 36,939

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Solution

The third proportional to 16,881 and 36,939 is: 80,829.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,881 : 36,939 = 36,939 : x
  2. Step 2: Convert to fraction form
    16,881/36,939 = 36,939/x
  3. Step 3: Cross multiply
    16,881x = 36,939 × 36,939
  4. Step 4: Simplify right side
    16,881x = 1,364,489,721
  5. Step 5: Solve for x
    x = 1,364,489,721/16,881
  6. Step 6: Final answer
    x = 80,829.91

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.