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Finding the Fourth Proportional to 29,169.60, 43,754.40 and 18,040.20

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Solution

The fourth proportional to 29,169.60, 43,754.40 and 18,040.20 is: 27,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,169.60 : 43,754.40 = 18,040.20 : x
  2. Step 2: Convert to fraction form
    29,169.60/43,754.40 = 18,040.20/x
  3. Step 3: Cross multiply
    29,169.60x = 43,754.40 × 18,040.20
  4. Step 4: Simplify right side
    29,169.60x = 789,338,126.88
  5. Step 5: Solve for x
    x = 789,338,126.88/29,169.60
  6. Step 6: Final answer
    x = 27,060.30

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Why These Related Problems?

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