Home / 25,493.72-38,229.78-9,900.68

Finding the Fourth Proportional to 25,493.72, 38,229.78 and 9,900.68

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Solution

The fourth proportional to 25,493.72, 38,229.78 and 9,900.68 is: 14,846.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,493.72 : 38,229.78 = 9,900.68 : x
  2. Step 2: Convert to fraction form
    25,493.72/38,229.78 = 9,900.68/x
  3. Step 3: Cross multiply
    25,493.72x = 38,229.78 × 9,900.68
  4. Step 4: Simplify right side
    25,493.72x = 378,500,818.25
  5. Step 5: Solve for x
    x = 378,500,818.25/25,493.72
  6. Step 6: Final answer
    x = 14,846.83

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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.