Home / 38,468.30-57,718.65-20,950.70

Finding the Fourth Proportional to 38,468.30, 57,718.65 and 20,950.70

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Solution

The fourth proportional to 38,468.30, 57,718.65 and 20,950.70 is: 31,434.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,468.30 : 57,718.65 = 20,950.70 : x
  2. Step 2: Convert to fraction form
    38,468.30/57,718.65 = 20,950.70/x
  3. Step 3: Cross multiply
    38,468.30x = 57,718.65 × 20,950.70
  4. Step 4: Simplify right side
    38,468.30x = 1,209,246,120.56
  5. Step 5: Solve for x
    x = 1,209,246,120.56/38,468.30
  6. Step 6: Final answer
    x = 31,434.87

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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.