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Finding the Fourth Proportional to 17,221.86, 25,832.79 and 5,543.28

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Solution

The fourth proportional to 17,221.86, 25,832.79 and 5,543.28 is: 8,314.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,221.86 : 25,832.79 = 5,543.28 : x
  2. Step 2: Convert to fraction form
    17,221.86/25,832.79 = 5,543.28/x
  3. Step 3: Cross multiply
    17,221.86x = 25,832.79 × 5,543.28
  4. Step 4: Simplify right side
    17,221.86x = 143,198,388.15
  5. Step 5: Solve for x
    x = 143,198,388.15/17,221.86
  6. Step 6: Final answer
    x = 8,314.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.