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Finding the Fourth Proportional to 29,280.80, 43,921.20 and 27,847.20

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Solution

The fourth proportional to 29,280.80, 43,921.20 and 27,847.20 is: 41,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,280.80 : 43,921.20 = 27,847.20 : x
  2. Step 2: Convert to fraction form
    29,280.80/43,921.20 = 27,847.20/x
  3. Step 3: Cross multiply
    29,280.80x = 43,921.20 × 27,847.20
  4. Step 4: Simplify right side
    29,280.80x = 1,223,082,440.64
  5. Step 5: Solve for x
    x = 1,223,082,440.64/29,280.80
  6. Step 6: Final answer
    x = 41,770.80

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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.