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Finding the Third Proportional to 21,465 and 47,952

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Solution

The third proportional to 21,465 and 47,952 is: 107,122.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,465 : 47,952 = 47,952 : x
  2. Step 2: Convert to fraction form
    21,465/47,952 = 47,952/x
  3. Step 3: Cross multiply
    21,465x = 47,952 × 47,952
  4. Step 4: Simplify right side
    21,465x = 2,299,394,304
  5. Step 5: Solve for x
    x = 2,299,394,304/21,465
  6. Step 6: Final answer
    x = 107,122.96

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.