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Finding the Third Proportional to 9,885.38 and 21,714.75

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Solution

The third proportional to 9,885.38 and 21,714.75 is: 47,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,885.38 : 21,714.75 = 21,714.75 : x
  2. Step 2: Convert to fraction form
    9,885.38/21,714.75 = 21,714.75/x
  3. Step 3: Cross multiply
    9,885.38x = 21,714.75 × 21,714.75
  4. Step 4: Simplify right side
    9,885.38x = 471,530,367.56
  5. Step 5: Solve for x
    x = 471,530,367.56/9,885.38
  6. Step 6: Final answer
    x = 47,699.80

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.