Home / 22,210.92-30,651.78-12,139.92

Finding the Fourth Proportional to 22,210.92, 30,651.78 and 12,139.92

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Solution

The fourth proportional to 22,210.92, 30,651.78 and 12,139.92 is: 16,753.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.92 : 30,651.78 = 12,139.92 : x
  2. Step 2: Convert to fraction form
    22,210.92/30,651.78 = 12,139.92/x
  3. Step 3: Cross multiply
    22,210.92x = 30,651.78 × 12,139.92
  4. Step 4: Simplify right side
    22,210.92x = 372,110,157.06
  5. Step 5: Solve for x
    x = 372,110,157.06/22,210.92
  6. Step 6: Final answer
    x = 16,753.48

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Double 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.