Home / 28,229.75-42,344.63-9,761.75

Finding the Fourth Proportional to 28,229.75, 42,344.63 and 9,761.75

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Solution

The fourth proportional to 28,229.75, 42,344.63 and 9,761.75 is: 14,642.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.75 : 42,344.63 = 9,761.75 : x
  2. Step 2: Convert to fraction form
    28,229.75/42,344.63 = 9,761.75/x
  3. Step 3: Cross multiply
    28,229.75x = 42,344.63 × 9,761.75
  4. Step 4: Simplify right side
    28,229.75x = 413,357,643.09
  5. Step 5: Solve for x
    x = 413,357,643.09/28,229.75
  6. Step 6: Final answer
    x = 14,642.63

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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.