Home / 36,405.68-50,234.42-20,489.18

Finding the Fourth Proportional to 36,405.68, 50,234.42 and 20,489.18

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Solution

The fourth proportional to 36,405.68, 50,234.42 and 20,489.18 is: 28,272.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,405.68 : 50,234.42 = 20,489.18 : x
  2. Step 2: Convert to fraction form
    36,405.68/50,234.42 = 20,489.18/x
  3. Step 3: Cross multiply
    36,405.68x = 50,234.42 × 20,489.18
  4. Step 4: Simplify right side
    36,405.68x = 1,029,262,073.58
  5. Step 5: Solve for x
    x = 1,029,262,073.58/36,405.68
  6. Step 6: Final answer
    x = 28,272.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.