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Finding the Third Proportional to 18,061 and 38,785

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Solution

The third proportional to 18,061 and 38,785 is: 83,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,061 : 38,785 = 38,785 : x
  2. Step 2: Convert to fraction form
    18,061/38,785 = 38,785/x
  3. Step 3: Cross multiply
    18,061x = 38,785 × 38,785
  4. Step 4: Simplify right side
    18,061x = 1,504,276,225
  5. Step 5: Solve for x
    x = 1,504,276,225/18,061
  6. Step 6: Final answer
    x = 83,288.65

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.