Home / 26,438.20-39,644.91-12,393.54

Finding the Fourth Proportional to 26,438.20, 39,644.91 and 12,393.54

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Solution

The fourth proportional to 26,438.20, 39,644.91 and 12,393.54 is: 18,584.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,438.20 : 39,644.91 = 12,393.54 : x
  2. Step 2: Convert to fraction form
    26,438.20/39,644.91 = 12,393.54/x
  3. Step 3: Cross multiply
    26,438.20x = 39,644.91 × 12,393.54
  4. Step 4: Simplify right side
    26,438.20x = 491,340,777.88
  5. Step 5: Solve for x
    x = 491,340,777.88/26,438.20
  6. Step 6: Final answer
    x = 18,584.50

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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.