Home / 28,118.88-42,365.97-25,453.85

Finding the Fourth Proportional to 28,118.88, 42,365.97 and 25,453.85

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Solution

The fourth proportional to 28,118.88, 42,365.97 and 25,453.85 is: 38,350.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118.88 : 42,365.97 = 25,453.85 : x
  2. Step 2: Convert to fraction form
    28,118.88/42,365.97 = 25,453.85/x
  3. Step 3: Cross multiply
    28,118.88x = 42,365.97 × 25,453.85
  4. Step 4: Simplify right side
    28,118.88x = 1,078,376,833.65
  5. Step 5: Solve for x
    x = 1,078,376,833.65/28,118.88
  6. Step 6: Final answer
    x = 38,350.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.