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Finding the Fourth Proportional to 22,169.24, 30,593.84 and 13,221.88

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Solution

The fourth proportional to 22,169.24, 30,593.84 and 13,221.88 is: 18,246.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,169.24 : 30,593.84 = 13,221.88 : x
  2. Step 2: Convert to fraction form
    22,169.24/30,593.84 = 13,221.88/x
  3. Step 3: Cross multiply
    22,169.24x = 30,593.84 × 13,221.88
  4. Step 4: Simplify right side
    22,169.24x = 404,508,081.22
  5. Step 5: Solve for x
    x = 404,508,081.22/22,169.24
  6. Step 6: Final answer
    x = 18,246.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.