Home / 25,408.18-38,115.96-7,879.42

Finding the Fourth Proportional to 25,408.18, 38,115.96 and 7,879.42

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Solution

The fourth proportional to 25,408.18, 38,115.96 and 7,879.42 is: 11,820.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,408.18 : 38,115.96 = 7,879.42 : x
  2. Step 2: Convert to fraction form
    25,408.18/38,115.96 = 7,879.42/x
  3. Step 3: Cross multiply
    25,408.18x = 38,115.96 × 7,879.42
  4. Step 4: Simplify right side
    25,408.18x = 300,331,657.54
  5. Step 5: Solve for x
    x = 300,331,657.54/25,408.18
  6. Step 6: Final answer
    x = 11,820.27

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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.