Home / 26,149.40-39,223.92-8,620.64

Finding the Fourth Proportional to 26,149.40, 39,223.92 and 8,620.64

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Solution

The fourth proportional to 26,149.40, 39,223.92 and 8,620.64 is: 12,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,149.40 : 39,223.92 = 8,620.64 : x
  2. Step 2: Convert to fraction form
    26,149.40/39,223.92 = 8,620.64/x
  3. Step 3: Cross multiply
    26,149.40x = 39,223.92 × 8,620.64
  4. Step 4: Simplify right side
    26,149.40x = 338,135,293.71
  5. Step 5: Solve for x
    x = 338,135,293.71/26,149.40
  6. Step 6: Final answer
    x = 12,930.90

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1.5x scale

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.