Home / 28,253.25-42,380.68-15,766.29

Finding the Fourth Proportional to 28,253.25, 42,380.68 and 15,766.29

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Solution

The fourth proportional to 28,253.25, 42,380.68 and 15,766.29 is: 23,649.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253.25 : 42,380.68 = 15,766.29 : x
  2. Step 2: Convert to fraction form
    28,253.25/42,380.68 = 15,766.29/x
  3. Step 3: Cross multiply
    28,253.25x = 42,380.68 × 15,766.29
  4. Step 4: Simplify right side
    28,253.25x = 668,186,091.28
  5. Step 5: Solve for x
    x = 668,186,091.28/28,253.25
  6. Step 6: Final answer
    x = 23,649.88

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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.