Home / 28,025.28-38,673.36-15,449.04

Finding the Fourth Proportional to 28,025.28, 38,673.36 and 15,449.04

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Solution

The fourth proportional to 28,025.28, 38,673.36 and 15,449.04 is: 21,318.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.28 : 38,673.36 = 15,449.04 : x
  2. Step 2: Convert to fraction form
    28,025.28/38,673.36 = 15,449.04/x
  3. Step 3: Cross multiply
    28,025.28x = 38,673.36 × 15,449.04
  4. Step 4: Simplify right side
    28,025.28x = 597,466,285.57
  5. Step 5: Solve for x
    x = 597,466,285.57/28,025.28
  6. Step 6: Final answer
    x = 21,318.83

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.