Home / 20,826.32-31,251.62-8,344.22

Finding the Fourth Proportional to 20,826.32, 31,251.62 and 8,344.22

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Solution

The fourth proportional to 20,826.32, 31,251.62 and 8,344.22 is: 12,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,826.32 : 31,251.62 = 8,344.22 : x
  2. Step 2: Convert to fraction form
    20,826.32/31,251.62 = 8,344.22/x
  3. Step 3: Cross multiply
    20,826.32x = 31,251.62 × 8,344.22
  4. Step 4: Simplify right side
    20,826.32x = 260,770,257.24
  5. Step 5: Solve for x
    x = 260,770,257.24/20,826.32
  6. Step 6: Final answer
    x = 12,521.19

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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.