Home / 25,879.27-38,791.23-13,386.72

Finding the Fourth Proportional to 25,879.27, 38,791.23 and 13,386.72

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Solution

The fourth proportional to 25,879.27, 38,791.23 and 13,386.72 is: 20,065.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,879.27 : 38,791.23 = 13,386.72 : x
  2. Step 2: Convert to fraction form
    25,879.27/38,791.23 = 13,386.72/x
  3. Step 3: Cross multiply
    25,879.27x = 38,791.23 × 13,386.72
  4. Step 4: Simplify right side
    25,879.27x = 519,287,334.47
  5. Step 5: Solve for x
    x = 519,287,334.47/25,879.27
  6. Step 6: Final answer
    x = 20,065.76

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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.