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Finding the Fourth Proportional to 17,092.40, 25,633.80 and 5,409.20

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Solution

The fourth proportional to 17,092.40, 25,633.80 and 5,409.20 is: 8,112.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,092.40 : 25,633.80 = 5,409.20 : x
  2. Step 2: Convert to fraction form
    17,092.40/25,633.80 = 5,409.20/x
  3. Step 3: Cross multiply
    17,092.40x = 25,633.80 × 5,409.20
  4. Step 4: Simplify right side
    17,092.40x = 138,658,350.96
  5. Step 5: Solve for x
    x = 138,658,350.96/17,092.40
  6. Step 6: Final answer
    x = 8,112.28

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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.