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Finding the Third Proportional to 9,418.62 and 20,279.58

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Solution

The third proportional to 9,418.62 and 20,279.58 is: 43,664.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.62 : 20,279.58 = 20,279.58 : x
  2. Step 2: Convert to fraction form
    9,418.62/20,279.58 = 20,279.58/x
  3. Step 3: Cross multiply
    9,418.62x = 20,279.58 × 20,279.58
  4. Step 4: Simplify right side
    9,418.62x = 411,261,526.58
  5. Step 5: Solve for x
    x = 411,261,526.58/9,418.62
  6. Step 6: Final answer
    x = 43,664.72

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.