Home / 25,187.87-34,759.26-13,857.12

Finding the Fourth Proportional to 25,187.87, 34,759.26 and 13,857.12

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Solution

The fourth proportional to 25,187.87, 34,759.26 and 13,857.12 is: 19,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,187.87 : 34,759.26 = 13,857.12 : x
  2. Step 2: Convert to fraction form
    25,187.87/34,759.26 = 13,857.12/x
  3. Step 3: Cross multiply
    25,187.87x = 34,759.26 × 13,857.12
  4. Step 4: Simplify right side
    25,187.87x = 481,663,334.69
  5. Step 5: Solve for x
    x = 481,663,334.69/25,187.87
  6. Step 6: Final answer
    x = 19,122.83

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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.