Home / 38,288.69-57,310.15-20,474.85

Finding the Fourth Proportional to 38,288.69, 57,310.15 and 20,474.85

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Solution

The fourth proportional to 38,288.69, 57,310.15 and 20,474.85 is: 30,646.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,288.69 : 57,310.15 = 20,474.85 : x
  2. Step 2: Convert to fraction form
    38,288.69/57,310.15 = 20,474.85/x
  3. Step 3: Cross multiply
    38,288.69x = 57,310.15 × 20,474.85
  4. Step 4: Simplify right side
    38,288.69x = 1,173,416,724.73
  5. Step 5: Solve for x
    x = 1,173,416,724.73/38,288.69
  6. Step 6: Final answer
    x = 30,646.56

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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.