Home / 27,578.88-41,370.75-7,857

Finding the Fourth Proportional to 27,578.88, 41,370.75 and 7,857

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Solution

The fourth proportional to 27,578.88, 41,370.75 and 7,857 is: 11,786.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,578.88 : 41,370.75 = 7,857 : x
  2. Step 2: Convert to fraction form
    27,578.88/41,370.75 = 7,857/x
  3. Step 3: Cross multiply
    27,578.88x = 41,370.75 × 7,857
  4. Step 4: Simplify right side
    27,578.88x = 325,049,982.75
  5. Step 5: Solve for x
    x = 325,049,982.75/27,578.88
  6. Step 6: Final answer
    x = 11,786.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.