Home / 22,057.68-30,432.60-13,679.04

Finding the Fourth Proportional to 22,057.68, 30,432.60 and 13,679.04

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Solution

The fourth proportional to 22,057.68, 30,432.60 and 13,679.04 is: 18,872.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,057.68 : 30,432.60 = 13,679.04 : x
  2. Step 2: Convert to fraction form
    22,057.68/30,432.60 = 13,679.04/x
  3. Step 3: Cross multiply
    22,057.68x = 30,432.60 × 13,679.04
  4. Step 4: Simplify right side
    22,057.68x = 416,288,752.70
  5. Step 5: Solve for x
    x = 416,288,752.70/22,057.68
  6. Step 6: Final answer
    x = 18,872.74

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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.