Home / 28,229.45-42,344.19-7,171.07

Finding the Fourth Proportional to 28,229.45, 42,344.19 and 7,171.07

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Solution

The fourth proportional to 28,229.45, 42,344.19 and 7,171.07 is: 10,756.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.45 : 42,344.19 = 7,171.07 : x
  2. Step 2: Convert to fraction form
    28,229.45/42,344.19 = 7,171.07/x
  3. Step 3: Cross multiply
    28,229.45x = 42,344.19 × 7,171.07
  4. Step 4: Simplify right side
    28,229.45x = 303,653,150.58
  5. Step 5: Solve for x
    x = 303,653,150.58/28,229.45
  6. Step 6: Final answer
    x = 10,756.61

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Similar ratio
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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.