Home / 28,250.78-42,380.42-8,530.92

Finding the Fourth Proportional to 28,250.78, 42,380.42 and 8,530.92

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Solution

The fourth proportional to 28,250.78, 42,380.42 and 8,530.92 is: 12,797.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.78 : 42,380.42 = 8,530.92 : x
  2. Step 2: Convert to fraction form
    28,250.78/42,380.42 = 8,530.92/x
  3. Step 3: Cross multiply
    28,250.78x = 42,380.42 × 8,530.92
  4. Step 4: Simplify right side
    28,250.78x = 361,543,929.93
  5. Step 5: Solve for x
    x = 361,543,929.93/28,250.78
  6. Step 6: Final answer
    x = 12,797.66

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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.