Home / 15,425.64-23,138.38-3,738.86

Finding the Fourth Proportional to 15,425.64, 23,138.38 and 3,738.86

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Solution

The fourth proportional to 15,425.64, 23,138.38 and 3,738.86 is: 5,608.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,425.64 : 23,138.38 = 3,738.86 : x
  2. Step 2: Convert to fraction form
    15,425.64/23,138.38 = 3,738.86/x
  3. Step 3: Cross multiply
    15,425.64x = 23,138.38 × 3,738.86
  4. Step 4: Simplify right side
    15,425.64x = 86,511,163.45
  5. Step 5: Solve for x
    x = 86,511,163.45/15,425.64
  6. Step 6: Final answer
    x = 5,608.27

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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.