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Finding the Fourth Proportional to 43,432.88, 65,150.44 and 11,843.20

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Solution

The fourth proportional to 43,432.88, 65,150.44 and 11,843.20 is: 17,765.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,432.88 : 65,150.44 = 11,843.20 : x
  2. Step 2: Convert to fraction form
    43,432.88/65,150.44 = 11,843.20/x
  3. Step 3: Cross multiply
    43,432.88x = 65,150.44 × 11,843.20
  4. Step 4: Simplify right side
    43,432.88x = 771,589,691.01
  5. Step 5: Solve for x
    x = 771,589,691.01/43,432.88
  6. Step 6: Final answer
    x = 17,765.11

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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.