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Finding the Third Proportional to 17,381 and 38,217

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Solution

The third proportional to 17,381 and 38,217 is: 84,030.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,381 : 38,217 = 38,217 : x
  2. Step 2: Convert to fraction form
    17,381/38,217 = 38,217/x
  3. Step 3: Cross multiply
    17,381x = 38,217 × 38,217
  4. Step 4: Simplify right side
    17,381x = 1,460,539,089
  5. Step 5: Solve for x
    x = 1,460,539,089/17,381
  6. Step 6: Final answer
    x = 84,030.79

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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.