Home / 25,826.85-38,685.60-17,920.85

Finding the Fourth Proportional to 25,826.85, 38,685.60 and 17,920.85

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Solution

The fourth proportional to 25,826.85, 38,685.60 and 17,920.85 is: 26,843.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,826.85 : 38,685.60 = 17,920.85 : x
  2. Step 2: Convert to fraction form
    25,826.85/38,685.60 = 17,920.85/x
  3. Step 3: Cross multiply
    25,826.85x = 38,685.60 × 17,920.85
  4. Step 4: Simplify right side
    25,826.85x = 693,278,641.33
  5. Step 5: Solve for x
    x = 693,278,641.33/25,826.85
  6. Step 6: Final answer
    x = 26,843.33

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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.