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Finding the Third Proportional to 17,959 and 36,431

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Solution

The third proportional to 17,959 and 36,431 is: 73,902.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,959 : 36,431 = 36,431 : x
  2. Step 2: Convert to fraction form
    17,959/36,431 = 36,431/x
  3. Step 3: Cross multiply
    17,959x = 36,431 × 36,431
  4. Step 4: Simplify right side
    17,959x = 1,327,217,761
  5. Step 5: Solve for x
    x = 1,327,217,761/17,959
  6. Step 6: Final answer
    x = 73,902.65

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.