Home / 22,217.99-30,660.90-12,146.55

Finding the Fourth Proportional to 22,217.99, 30,660.90 and 12,146.55

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Solution

The fourth proportional to 22,217.99, 30,660.90 and 12,146.55 is: 16,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.99 : 30,660.90 = 12,146.55 : x
  2. Step 2: Convert to fraction form
    22,217.99/30,660.90 = 12,146.55/x
  3. Step 3: Cross multiply
    22,217.99x = 30,660.90 × 12,146.55
  4. Step 4: Simplify right side
    22,217.99x = 372,424,154.90
  5. Step 5: Solve for x
    x = 372,424,154.90/22,217.99
  6. Step 6: Final answer
    x = 16,762.28

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Half scale
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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.