Home / 22,002.38-30,360.21-12,440.66

Finding the Fourth Proportional to 22,002.38, 30,360.21 and 12,440.66

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Solution

The fourth proportional to 22,002.38, 30,360.21 and 12,440.66 is: 17,166.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,002.38 : 30,360.21 = 12,440.66 : x
  2. Step 2: Convert to fraction form
    22,002.38/30,360.21 = 12,440.66/x
  3. Step 3: Cross multiply
    22,002.38x = 30,360.21 × 12,440.66
  4. Step 4: Simplify right side
    22,002.38x = 377,701,050.14
  5. Step 5: Solve for x
    x = 377,701,050.14/22,002.38
  6. Step 6: Final answer
    x = 17,166.37

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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.