Home / 28,125.43-42,180.75-8,399.30

Finding the Fourth Proportional to 28,125.43, 42,180.75 and 8,399.30

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Solution

The fourth proportional to 28,125.43, 42,180.75 and 8,399.30 is: 12,596.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.43 : 42,180.75 = 8,399.30 : x
  2. Step 2: Convert to fraction form
    28,125.43/42,180.75 = 8,399.30/x
  3. Step 3: Cross multiply
    28,125.43x = 42,180.75 × 8,399.30
  4. Step 4: Simplify right side
    28,125.43x = 354,288,562.57
  5. Step 5: Solve for x
    x = 354,288,562.57/28,125.43
  6. Step 6: Final answer
    x = 12,596.74

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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.