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Finding the Third Proportional to 21,842 and 47,393

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Solution

The third proportional to 21,842 and 47,393 is: 102,833.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,842 : 47,393 = 47,393 : x
  2. Step 2: Convert to fraction form
    21,842/47,393 = 47,393/x
  3. Step 3: Cross multiply
    21,842x = 47,393 × 47,393
  4. Step 4: Simplify right side
    21,842x = 2,246,096,449
  5. Step 5: Solve for x
    x = 2,246,096,449/21,842
  6. Step 6: Final answer
    x = 102,833.83

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.