Home / 22,179.15-30,640.61-14,540.57

Finding the Fourth Proportional to 22,179.15, 30,640.61 and 14,540.57

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Solution

The fourth proportional to 22,179.15, 30,640.61 and 14,540.57 is: 20,087.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,179.15 : 30,640.61 = 14,540.57 : x
  2. Step 2: Convert to fraction form
    22,179.15/30,640.61 = 14,540.57/x
  3. Step 3: Cross multiply
    22,179.15x = 30,640.61 × 14,540.57
  4. Step 4: Simplify right side
    22,179.15x = 445,531,990.05
  5. Step 5: Solve for x
    x = 445,531,990.05/22,179.15
  6. Step 6: Final answer
    x = 20,087.88

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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.