Home / 18,040.42-24,879.61-15,025.55

Finding the Fourth Proportional to 18,040.42, 24,879.61 and 15,025.55

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Solution

The fourth proportional to 18,040.42, 24,879.61 and 15,025.55 is: 20,721.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,040.42 : 24,879.61 = 15,025.55 : x
  2. Step 2: Convert to fraction form
    18,040.42/24,879.61 = 15,025.55/x
  3. Step 3: Cross multiply
    18,040.42x = 24,879.61 × 15,025.55
  4. Step 4: Simplify right side
    18,040.42x = 373,829,773.85
  5. Step 5: Solve for x
    x = 373,829,773.85/18,040.42
  6. Step 6: Final answer
    x = 20,721.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.