Home / 25,882.87-35,720.64-15,270.43

Finding the Fourth Proportional to 25,882.87, 35,720.64 and 15,270.43

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Solution

The fourth proportional to 25,882.87, 35,720.64 and 15,270.43 is: 21,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,882.87 : 35,720.64 = 15,270.43 : x
  2. Step 2: Convert to fraction form
    25,882.87/35,720.64 = 15,270.43/x
  3. Step 3: Cross multiply
    25,882.87x = 35,720.64 × 15,270.43
  4. Step 4: Simplify right side
    25,882.87x = 545,469,532.68
  5. Step 5: Solve for x
    x = 545,469,532.68/25,882.87
  6. Step 6: Final answer
    x = 21,074.54

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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.