Home / 26,128.20-39,202.69-8,361.60

Finding the Fourth Proportional to 26,128.20, 39,202.69 and 8,361.60

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Solution

The fourth proportional to 26,128.20, 39,202.69 and 8,361.60 is: 12,545.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,128.20 : 39,202.69 = 8,361.60 : x
  2. Step 2: Convert to fraction form
    26,128.20/39,202.69 = 8,361.60/x
  3. Step 3: Cross multiply
    26,128.20x = 39,202.69 × 8,361.60
  4. Step 4: Simplify right side
    26,128.20x = 327,797,212.70
  5. Step 5: Solve for x
    x = 327,797,212.70/26,128.20
  6. Step 6: Final answer
    x = 12,545.73

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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.