Home / 25,408.56-38,116.52-7,879.80

Finding the Fourth Proportional to 25,408.56, 38,116.52 and 7,879.80

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Solution

The fourth proportional to 25,408.56, 38,116.52 and 7,879.80 is: 11,820.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,408.56 : 38,116.52 = 7,879.80 : x
  2. Step 2: Convert to fraction form
    25,408.56/38,116.52 = 7,879.80/x
  3. Step 3: Cross multiply
    25,408.56x = 38,116.52 × 7,879.80
  4. Step 4: Simplify right side
    25,408.56x = 300,350,554.30
  5. Step 5: Solve for x
    x = 300,350,554.30/25,408.56
  6. Step 6: Final answer
    x = 11,820.84

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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.