Home / 20,372.88-30,568.04-8,529.42

Finding the Fourth Proportional to 20,372.88, 30,568.04 and 8,529.42

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Solution

The fourth proportional to 20,372.88, 30,568.04 and 8,529.42 is: 12,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372.88 : 30,568.04 = 8,529.42 : x
  2. Step 2: Convert to fraction form
    20,372.88/30,568.04 = 8,529.42/x
  3. Step 3: Cross multiply
    20,372.88x = 30,568.04 × 8,529.42
  4. Step 4: Simplify right side
    20,372.88x = 260,727,651.74
  5. Step 5: Solve for x
    x = 260,727,651.74/20,372.88
  6. Step 6: Final answer
    x = 12,797.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.