Home / 20,163.20-30,247.83-6,121.44

Finding the Fourth Proportional to 20,163.20, 30,247.83 and 6,121.44

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Solution

The fourth proportional to 20,163.20, 30,247.83 and 6,121.44 is: 9,183.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.20 : 30,247.83 = 6,121.44 : x
  2. Step 2: Convert to fraction form
    20,163.20/30,247.83 = 6,121.44/x
  3. Step 3: Cross multiply
    20,163.20x = 30,247.83 × 6,121.44
  4. Step 4: Simplify right side
    20,163.20x = 185,160,276.48
  5. Step 5: Solve for x
    x = 185,160,276.48/20,163.20
  6. Step 6: Final answer
    x = 9,183.08

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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.