Home / 22,121.28-30,527.52-12,560.85

Finding the Fourth Proportional to 22,121.28, 30,527.52 and 12,560.85

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Solution

The fourth proportional to 22,121.28, 30,527.52 and 12,560.85 is: 17,334.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.28 : 30,527.52 = 12,560.85 : x
  2. Step 2: Convert to fraction form
    22,121.28/30,527.52 = 12,560.85/x
  3. Step 3: Cross multiply
    22,121.28x = 30,527.52 × 12,560.85
  4. Step 4: Simplify right side
    22,121.28x = 383,451,599.59
  5. Step 5: Solve for x
    x = 383,451,599.59/22,121.28
  6. Step 6: Final answer
    x = 17,334.06

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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.