Home / 22,212.88-30,654.21-12,141.04

Finding the Fourth Proportional to 22,212.88, 30,654.21 and 12,141.04

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Solution

The fourth proportional to 22,212.88, 30,654.21 and 12,141.04 is: 16,754.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,212.88 : 30,654.21 = 12,141.04 : x
  2. Step 2: Convert to fraction form
    22,212.88/30,654.21 = 12,141.04/x
  3. Step 3: Cross multiply
    22,212.88x = 30,654.21 × 12,141.04
  4. Step 4: Simplify right side
    22,212.88x = 372,173,989.78
  5. Step 5: Solve for x
    x = 372,173,989.78/22,212.88
  6. Step 6: Final answer
    x = 16,754.87

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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.