Home / 26,781.36-40,129.76-21,759.24

Finding the Fourth Proportional to 26,781.36, 40,129.76 and 21,759.24

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Solution

The fourth proportional to 26,781.36, 40,129.76 and 21,759.24 is: 32,604.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,781.36 : 40,129.76 = 21,759.24 : x
  2. Step 2: Convert to fraction form
    26,781.36/40,129.76 = 21,759.24/x
  3. Step 3: Cross multiply
    26,781.36x = 40,129.76 × 21,759.24
  4. Step 4: Simplify right side
    26,781.36x = 873,193,078.98
  5. Step 5: Solve for x
    x = 873,193,078.98/26,781.36
  6. Step 6: Final answer
    x = 32,604.51

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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.