Home / 25,519.21-38,283.82-8,879.78

Finding the Fourth Proportional to 25,519.21, 38,283.82 and 8,879.78

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Solution

The fourth proportional to 25,519.21, 38,283.82 and 8,879.78 is: 13,321.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,519.21 : 38,283.82 = 8,879.78 : x
  2. Step 2: Convert to fraction form
    25,519.21/38,283.82 = 8,879.78/x
  3. Step 3: Cross multiply
    25,519.21x = 38,283.82 × 8,879.78
  4. Step 4: Simplify right side
    25,519.21x = 339,952,022.62
  5. Step 5: Solve for x
    x = 339,952,022.62/25,519.21
  6. Step 6: Final answer
    x = 13,321.42

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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.