Home / 38,502.28-57,718.78-13,872.52

Finding the Fourth Proportional to 38,502.28, 57,718.78 and 13,872.52

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Solution

The fourth proportional to 38,502.28, 57,718.78 and 13,872.52 is: 20,796.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,502.28 : 57,718.78 = 13,872.52 : x
  2. Step 2: Convert to fraction form
    38,502.28/57,718.78 = 13,872.52/x
  3. Step 3: Cross multiply
    38,502.28x = 57,718.78 × 13,872.52
  4. Step 4: Simplify right side
    38,502.28x = 800,704,929.93
  5. Step 5: Solve for x
    x = 800,704,929.93/38,502.28
  6. Step 6: Final answer
    x = 20,796.30

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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.