Home / 25,249.60-37,819.32-20,817.28

Finding the Fourth Proportional to 25,249.60, 37,819.32 and 20,817.28

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Solution

The fourth proportional to 25,249.60, 37,819.32 and 20,817.28 is: 31,180.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,249.60 : 37,819.32 = 20,817.28 : x
  2. Step 2: Convert to fraction form
    25,249.60/37,819.32 = 20,817.28/x
  3. Step 3: Cross multiply
    25,249.60x = 37,819.32 × 20,817.28
  4. Step 4: Simplify right side
    25,249.60x = 787,295,373.85
  5. Step 5: Solve for x
    x = 787,295,373.85/25,249.60
  6. Step 6: Final answer
    x = 31,180.51

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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.