Home / 19,249.92-26,540.19-15,787.80

Finding the Fourth Proportional to 19,249.92, 26,540.19 and 15,787.80

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Solution

The fourth proportional to 19,249.92, 26,540.19 and 15,787.80 is: 21,766.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,249.92 : 26,540.19 = 15,787.80 : x
  2. Step 2: Convert to fraction form
    19,249.92/26,540.19 = 15,787.80/x
  3. Step 3: Cross multiply
    19,249.92x = 26,540.19 × 15,787.80
  4. Step 4: Simplify right side
    19,249.92x = 419,011,211.68
  5. Step 5: Solve for x
    x = 419,011,211.68/19,249.92
  6. Step 6: Final answer
    x = 21,766.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.