Home / 20,155.20-30,234.24-5,363.52

Finding the Fourth Proportional to 20,155.20, 30,234.24 and 5,363.52

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Solution

The fourth proportional to 20,155.20, 30,234.24 and 5,363.52 is: 8,045.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.20 : 30,234.24 = 5,363.52 : x
  2. Step 2: Convert to fraction form
    20,155.20/30,234.24 = 5,363.52/x
  3. Step 3: Cross multiply
    20,155.20x = 30,234.24 × 5,363.52
  4. Step 4: Simplify right side
    20,155.20x = 162,161,950.92
  5. Step 5: Solve for x
    x = 162,161,950.92/20,155.20
  6. Step 6: Final answer
    x = 8,045.66

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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.