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Finding the Third Proportional to 18,003 and 39,234

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Solution

The third proportional to 18,003 and 39,234 is: 85,502.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003 : 39,234 = 39,234 : x
  2. Step 2: Convert to fraction form
    18,003/39,234 = 39,234/x
  3. Step 3: Cross multiply
    18,003x = 39,234 × 39,234
  4. Step 4: Simplify right side
    18,003x = 1,539,306,756
  5. Step 5: Solve for x
    x = 1,539,306,756/18,003
  6. Step 6: Final answer
    x = 85,502.79

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.