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Finding the Third Proportional to 20,798 and 27,471

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Solution

The third proportional to 20,798 and 27,471 is: 36,285.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,798 : 27,471 = 27,471 : x
  2. Step 2: Convert to fraction form
    20,798/27,471 = 27,471/x
  3. Step 3: Cross multiply
    20,798x = 27,471 × 27,471
  4. Step 4: Simplify right side
    20,798x = 754,655,841
  5. Step 5: Solve for x
    x = 754,655,841/20,798
  6. Step 6: Final answer
    x = 36,285.02

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.