Home / 20,154.38-30,247.31-13,957.82

Finding the Fourth Proportional to 20,154.38, 30,247.31 and 13,957.82

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Solution

The fourth proportional to 20,154.38, 30,247.31 and 13,957.82 is: 20,947.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.38 : 30,247.31 = 13,957.82 : x
  2. Step 2: Convert to fraction form
    20,154.38/30,247.31 = 13,957.82/x
  3. Step 3: Cross multiply
    20,154.38x = 30,247.31 × 13,957.82
  4. Step 4: Simplify right side
    20,154.38x = 422,186,508.46
  5. Step 5: Solve for x
    x = 422,186,508.46/20,154.38
  6. Step 6: Final answer
    x = 20,947.63

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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.