Home / 26,417.80-39,655.86-20,906.56

Finding the Fourth Proportional to 26,417.80, 39,655.86 and 20,906.56

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Solution

The fourth proportional to 26,417.80, 39,655.86 and 20,906.56 is: 31,382.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,417.80 : 39,655.86 = 20,906.56 : x
  2. Step 2: Convert to fraction form
    26,417.80/39,655.86 = 20,906.56/x
  3. Step 3: Cross multiply
    26,417.80x = 39,655.86 × 20,906.56
  4. Step 4: Simplify right side
    26,417.80x = 829,067,616.44
  5. Step 5: Solve for x
    x = 829,067,616.44/26,417.80
  6. Step 6: Final answer
    x = 31,382.92

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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.