Home / 25,187.31-34,758.52-13,857.03

Finding the Fourth Proportional to 25,187.31, 34,758.52 and 13,857.03

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Solution

The fourth proportional to 25,187.31, 34,758.52 and 13,857.03 is: 19,122.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,187.31 : 34,758.52 = 13,857.03 : x
  2. Step 2: Convert to fraction form
    25,187.31/34,758.52 = 13,857.03/x
  3. Step 3: Cross multiply
    25,187.31x = 34,758.52 × 13,857.03
  4. Step 4: Simplify right side
    25,187.31x = 481,649,819.75
  5. Step 5: Solve for x
    x = 481,649,819.75/25,187.31
  6. Step 6: Final answer
    x = 19,122.72

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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.