Home / 25,439.12-38,140.88-11,200.64

Finding the Fourth Proportional to 25,439.12, 38,140.88 and 11,200.64

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Solution

The fourth proportional to 25,439.12, 38,140.88 and 11,200.64 is: 16,793.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,439.12 : 38,140.88 = 11,200.64 : x
  2. Step 2: Convert to fraction form
    25,439.12/38,140.88 = 11,200.64/x
  3. Step 3: Cross multiply
    25,439.12x = 38,140.88 × 11,200.64
  4. Step 4: Simplify right side
    25,439.12x = 427,202,266.16
  5. Step 5: Solve for x
    x = 427,202,266.16/25,439.12
  6. Step 6: Final answer
    x = 16,793.12

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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.