Home / 38,960.16-58,439.88-16,789.20

Finding the Fourth Proportional to 38,960.16, 58,439.88 and 16,789.20

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Solution

The fourth proportional to 38,960.16, 58,439.88 and 16,789.20 is: 25,183.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,960.16 : 58,439.88 = 16,789.20 : x
  2. Step 2: Convert to fraction form
    38,960.16/58,439.88 = 16,789.20/x
  3. Step 3: Cross multiply
    38,960.16x = 58,439.88 × 16,789.20
  4. Step 4: Simplify right side
    38,960.16x = 981,158,833.30
  5. Step 5: Solve for x
    x = 981,158,833.30/38,960.16
  6. Step 6: Final answer
    x = 25,183.64

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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.