Home / 26,268.20-39,380.12-12,220.97

Finding the Fourth Proportional to 26,268.20, 39,380.12 and 12,220.97

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Solution

The fourth proportional to 26,268.20, 39,380.12 and 12,220.97 is: 18,321.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,268.20 : 39,380.12 = 12,220.97 : x
  2. Step 2: Convert to fraction form
    26,268.20/39,380.12 = 12,220.97/x
  3. Step 3: Cross multiply
    26,268.20x = 39,380.12 × 12,220.97
  4. Step 4: Simplify right side
    26,268.20x = 481,263,204.01
  5. Step 5: Solve for x
    x = 481,263,204.01/26,268.20
  6. Step 6: Final answer
    x = 18,321.14

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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.