Home / 25,879.25-38,791.19-13,386.69

Finding the Fourth Proportional to 25,879.25, 38,791.19 and 13,386.69

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Solution

The fourth proportional to 25,879.25, 38,791.19 and 13,386.69 is: 20,065.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,879.25 : 38,791.19 = 13,386.69 : x
  2. Step 2: Convert to fraction form
    25,879.25/38,791.19 = 13,386.69/x
  3. Step 3: Cross multiply
    25,879.25x = 38,791.19 × 13,386.69
  4. Step 4: Simplify right side
    25,879.25x = 519,285,568.33
  5. Step 5: Solve for x
    x = 519,285,568.33/25,879.25
  6. Step 6: Final answer
    x = 20,065.72

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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.