Home / 26,390.37-39,589.20-8,865.21

Finding the Fourth Proportional to 26,390.37, 39,589.20 and 8,865.21

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Solution

The fourth proportional to 26,390.37, 39,589.20 and 8,865.21 is: 13,299.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,390.37 : 39,589.20 = 8,865.21 : x
  2. Step 2: Convert to fraction form
    26,390.37/39,589.20 = 8,865.21/x
  3. Step 3: Cross multiply
    26,390.37x = 39,589.20 × 8,865.21
  4. Step 4: Simplify right side
    26,390.37x = 350,966,571.73
  5. Step 5: Solve for x
    x = 350,966,571.73/26,390.37
  6. Step 6: Final answer
    x = 13,299.04

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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.