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Finding the Fourth Proportional to 22,130.96, 30,540.84 and 12,194.96

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Solution

The fourth proportional to 22,130.96, 30,540.84 and 12,194.96 is: 16,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,130.96 : 30,540.84 = 12,194.96 : x
  2. Step 2: Convert to fraction form
    22,130.96/30,540.84 = 12,194.96/x
  3. Step 3: Cross multiply
    22,130.96x = 30,540.84 × 12,194.96
  4. Step 4: Simplify right side
    22,130.96x = 372,444,322.17
  5. Step 5: Solve for x
    x = 372,444,322.17/22,130.96
  6. Step 6: Final answer
    x = 16,829.11

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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.