Home / 28,262.87-39,003.25-15,517.24

Finding the Fourth Proportional to 28,262.87, 39,003.25 and 15,517.24

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Solution

The fourth proportional to 28,262.87, 39,003.25 and 15,517.24 is: 21,414.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.87 : 39,003.25 = 15,517.24 : x
  2. Step 2: Convert to fraction form
    28,262.87/39,003.25 = 15,517.24/x
  3. Step 3: Cross multiply
    28,262.87x = 39,003.25 × 15,517.24
  4. Step 4: Simplify right side
    28,262.87x = 605,222,791.03
  5. Step 5: Solve for x
    x = 605,222,791.03/28,262.87
  6. Step 6: Final answer
    x = 21,414.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.