Home / 20,318.85-30,474.77-5,525.82

Finding the Fourth Proportional to 20,318.85, 30,474.77 and 5,525.82

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Solution

The fourth proportional to 20,318.85, 30,474.77 and 5,525.82 is: 8,287.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.85 : 30,474.77 = 5,525.82 : x
  2. Step 2: Convert to fraction form
    20,318.85/30,474.77 = 5,525.82/x
  3. Step 3: Cross multiply
    20,318.85x = 30,474.77 × 5,525.82
  4. Step 4: Simplify right side
    20,318.85x = 168,398,065.93
  5. Step 5: Solve for x
    x = 168,398,065.93/20,318.85
  6. Step 6: Final answer
    x = 8,287.78

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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.