Home / 20,183.20-30,287.55-7,704.56

Finding the Fourth Proportional to 20,183.20, 30,287.55 and 7,704.56

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Solution

The fourth proportional to 20,183.20, 30,287.55 and 7,704.56 is: 11,561.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.20 : 30,287.55 = 7,704.56 : x
  2. Step 2: Convert to fraction form
    20,183.20/30,287.55 = 7,704.56/x
  3. Step 3: Cross multiply
    20,183.20x = 30,287.55 × 7,704.56
  4. Step 4: Simplify right side
    20,183.20x = 233,352,246.23
  5. Step 5: Solve for x
    x = 233,352,246.23/20,183.20
  6. Step 6: Final answer
    x = 11,561.71

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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.