Home / 22,286.55-30,754.31-12,213.21

Finding the Fourth Proportional to 22,286.55, 30,754.31 and 12,213.21

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Solution

The fourth proportional to 22,286.55, 30,754.31 and 12,213.21 is: 16,853.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,286.55 : 30,754.31 = 12,213.21 : x
  2. Step 2: Convert to fraction form
    22,286.55/30,754.31 = 12,213.21/x
  3. Step 3: Cross multiply
    22,286.55x = 30,754.31 × 12,213.21
  4. Step 4: Simplify right side
    22,286.55x = 375,608,785.37
  5. Step 5: Solve for x
    x = 375,608,785.37/22,286.55
  6. Step 6: Final answer
    x = 16,853.61

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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.