Home / 26,659.86-39,989.82-19,739.22

Finding the Fourth Proportional to 26,659.86, 39,989.82 and 19,739.22

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Solution

The fourth proportional to 26,659.86, 39,989.82 and 19,739.22 is: 29,608.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,659.86 : 39,989.82 = 19,739.22 : x
  2. Step 2: Convert to fraction form
    26,659.86/39,989.82 = 19,739.22/x
  3. Step 3: Cross multiply
    26,659.86x = 39,989.82 × 19,739.22
  4. Step 4: Simplify right side
    26,659.86x = 789,367,854.74
  5. Step 5: Solve for x
    x = 789,367,854.74/26,659.86
  6. Step 6: Final answer
    x = 29,608.85

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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.