Home / 28,229.79-42,346.49-7,452.75

Finding the Fourth Proportional to 28,229.79, 42,346.49 and 7,452.75

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Solution

The fourth proportional to 28,229.79, 42,346.49 and 7,452.75 is: 11,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.79 : 42,346.49 = 7,452.75 : x
  2. Step 2: Convert to fraction form
    28,229.79/42,346.49 = 7,452.75/x
  3. Step 3: Cross multiply
    28,229.79x = 42,346.49 × 7,452.75
  4. Step 4: Simplify right side
    28,229.79x = 315,597,766.08
  5. Step 5: Solve for x
    x = 315,597,766.08/28,229.79
  6. Step 6: Final answer
    x = 11,179.60

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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.