Home / 22,216.98-30,658.20-12,143.42

Finding the Fourth Proportional to 22,216.98, 30,658.20 and 12,143.42

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Solution

The fourth proportional to 22,216.98, 30,658.20 and 12,143.42 is: 16,757.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,216.98 : 30,658.20 = 12,143.42 : x
  2. Step 2: Convert to fraction form
    22,216.98/30,658.20 = 12,143.42/x
  3. Step 3: Cross multiply
    22,216.98x = 30,658.20 × 12,143.42
  4. Step 4: Simplify right side
    22,216.98x = 372,295,315.18
  5. Step 5: Solve for x
    x = 372,295,315.18/22,216.98
  6. Step 6: Final answer
    x = 16,757.24

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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.