Home / 28,891.06-43,341.15-12,251.20

Finding the Fourth Proportional to 28,891.06, 43,341.15 and 12,251.20

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Solution

The fourth proportional to 28,891.06, 43,341.15 and 12,251.20 is: 18,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891.06 : 43,341.15 = 12,251.20 : x
  2. Step 2: Convert to fraction form
    28,891.06/43,341.15 = 12,251.20/x
  3. Step 3: Cross multiply
    28,891.06x = 43,341.15 × 12,251.20
  4. Step 4: Simplify right side
    28,891.06x = 530,981,096.88
  5. Step 5: Solve for x
    x = 530,981,096.88/28,891.06
  6. Step 6: Final answer
    x = 18,378.73

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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.