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Finding the Fourth Proportional to 29,255.20, 43,915.20 and 18,174.40

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Solution

The fourth proportional to 29,255.20, 43,915.20 and 18,174.40 is: 27,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,255.20 : 43,915.20 = 18,174.40 : x
  2. Step 2: Convert to fraction form
    29,255.20/43,915.20 = 18,174.40/x
  3. Step 3: Cross multiply
    29,255.20x = 43,915.20 × 18,174.40
  4. Step 4: Simplify right side
    29,255.20x = 798,132,410.88
  5. Step 5: Solve for x
    x = 798,132,410.88/29,255.20
  6. Step 6: Final answer
    x = 27,281.73

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1.5x scale

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.