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Finding the Third Proportional to 21,336 and 33,471

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Solution

The third proportional to 21,336 and 33,471 is: 52,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336 : 33,471 = 33,471 : x
  2. Step 2: Convert to fraction form
    21,336/33,471 = 33,471/x
  3. Step 3: Cross multiply
    21,336x = 33,471 × 33,471
  4. Step 4: Simplify right side
    21,336x = 1,120,307,841
  5. Step 5: Solve for x
    x = 1,120,307,841/21,336
  6. Step 6: Final answer
    x = 52,507.87

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.