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Finding the Third Proportional to 21,274 and 49,687

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Solution

The third proportional to 21,274 and 49,687 is: 116,047.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274 : 49,687 = 49,687 : x
  2. Step 2: Convert to fraction form
    21,274/49,687 = 49,687/x
  3. Step 3: Cross multiply
    21,274x = 49,687 × 49,687
  4. Step 4: Simplify right side
    21,274x = 2,468,797,969
  5. Step 5: Solve for x
    x = 2,468,797,969/21,274
  6. Step 6: Final answer
    x = 116,047.66

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.