Home / 22,229.99-30,677.37-12,158.45

Finding the Fourth Proportional to 22,229.99, 30,677.37 and 12,158.45

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Solution

The fourth proportional to 22,229.99, 30,677.37 and 12,158.45 is: 16,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,229.99 : 30,677.37 = 12,158.45 : x
  2. Step 2: Convert to fraction form
    22,229.99/30,677.37 = 12,158.45/x
  3. Step 3: Cross multiply
    22,229.99x = 30,677.37 × 12,158.45
  4. Step 4: Simplify right side
    22,229.99x = 372,989,115.89
  5. Step 5: Solve for x
    x = 372,989,115.89/22,229.99
  6. Step 6: Final answer
    x = 16,778.65

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Half scale
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Double scale
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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.