Home / 28,217.79-42,331.55-9,499.59

Finding the Fourth Proportional to 28,217.79, 42,331.55 and 9,499.59

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Solution

The fourth proportional to 28,217.79, 42,331.55 and 9,499.59 is: 14,251.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,217.79 : 42,331.55 = 9,499.59 : x
  2. Step 2: Convert to fraction form
    28,217.79/42,331.55 = 9,499.59/x
  3. Step 3: Cross multiply
    28,217.79x = 42,331.55 × 9,499.59
  4. Step 4: Simplify right side
    28,217.79x = 402,132,321.57
  5. Step 5: Solve for x
    x = 402,132,321.57/28,217.79
  6. Step 6: Final answer
    x = 14,251.02

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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.