Home / 22,200.30-30,635.19-12,126.75

Finding the Fourth Proportional to 22,200.30, 30,635.19 and 12,126.75

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Solution

The fourth proportional to 22,200.30, 30,635.19 and 12,126.75 is: 16,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,200.30 : 30,635.19 = 12,126.75 : x
  2. Step 2: Convert to fraction form
    22,200.30/30,635.19 = 12,126.75/x
  3. Step 3: Cross multiply
    22,200.30x = 30,635.19 × 12,126.75
  4. Step 4: Simplify right side
    22,200.30x = 371,505,290.33
  5. Step 5: Solve for x
    x = 371,505,290.33/22,200.30
  6. Step 6: Final answer
    x = 16,734.25

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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.