Home / 22,002.38-30,363.20-11,930.79

Finding the Fourth Proportional to 22,002.38, 30,363.20 and 11,930.79

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Solution

The fourth proportional to 22,002.38, 30,363.20 and 11,930.79 is: 16,464.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,002.38 : 30,363.20 = 11,930.79 : x
  2. Step 2: Convert to fraction form
    22,002.38/30,363.20 = 11,930.79/x
  3. Step 3: Cross multiply
    22,002.38x = 30,363.20 × 11,930.79
  4. Step 4: Simplify right side
    22,002.38x = 362,257,128.99
  5. Step 5: Solve for x
    x = 362,257,128.99/22,002.38
  6. Step 6: Final answer
    x = 16,464.45

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Half scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.