Home / 22,213.79-30,655.52-12,142.89

Finding the Fourth Proportional to 22,213.79, 30,655.52 and 12,142.89

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Solution

The fourth proportional to 22,213.79, 30,655.52 and 12,142.89 is: 16,757.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,213.79 : 30,655.52 = 12,142.89 : x
  2. Step 2: Convert to fraction form
    22,213.79/30,655.52 = 12,142.89/x
  3. Step 3: Cross multiply
    22,213.79x = 30,655.52 × 12,142.89
  4. Step 4: Simplify right side
    22,213.79x = 372,246,546.54
  5. Step 5: Solve for x
    x = 372,246,546.54/22,213.79
  6. Step 6: Final answer
    x = 16,757.46

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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.