Home / 38,478.24-57,727.60-12,183.52

Finding the Fourth Proportional to 38,478.24, 57,727.60 and 12,183.52

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Solution

The fourth proportional to 38,478.24, 57,727.60 and 12,183.52 is: 18,278.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.24 : 57,727.60 = 12,183.52 : x
  2. Step 2: Convert to fraction form
    38,478.24/57,727.60 = 12,183.52/x
  3. Step 3: Cross multiply
    38,478.24x = 57,727.60 × 12,183.52
  4. Step 4: Simplify right side
    38,478.24x = 703,325,369.15
  5. Step 5: Solve for x
    x = 703,325,369.15/38,478.24
  6. Step 6: Final answer
    x = 18,278.52

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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.