Home / 26,380.80-39,561.60-8,851.20

Finding the Fourth Proportional to 26,380.80, 39,561.60 and 8,851.20

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Solution

The fourth proportional to 26,380.80, 39,561.60 and 8,851.20 is: 13,273.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,380.80 : 39,561.60 = 8,851.20 : x
  2. Step 2: Convert to fraction form
    26,380.80/39,561.60 = 8,851.20/x
  3. Step 3: Cross multiply
    26,380.80x = 39,561.60 × 8,851.20
  4. Step 4: Simplify right side
    26,380.80x = 350,167,633.92
  5. Step 5: Solve for x
    x = 350,167,633.92/26,380.80
  6. Step 6: Final answer
    x = 13,273.58

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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.