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Finding the Third Proportional to 17,879 and 38,132

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Solution

The third proportional to 17,879 and 38,132 is: 81,327.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879 : 38,132 = 38,132 : x
  2. Step 2: Convert to fraction form
    17,879/38,132 = 38,132/x
  3. Step 3: Cross multiply
    17,879x = 38,132 × 38,132
  4. Step 4: Simplify right side
    17,879x = 1,454,049,424
  5. Step 5: Solve for x
    x = 1,454,049,424/17,879
  6. Step 6: Final answer
    x = 81,327.22

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.