Home / 27,862.21-41,791.84-9,139.78

Finding the Fourth Proportional to 27,862.21, 41,791.84 and 9,139.78

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Solution

The fourth proportional to 27,862.21, 41,791.84 and 9,139.78 is: 13,709.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,862.21 : 41,791.84 = 9,139.78 : x
  2. Step 2: Convert to fraction form
    27,862.21/41,791.84 = 9,139.78/x
  3. Step 3: Cross multiply
    27,862.21x = 41,791.84 × 9,139.78
  4. Step 4: Simplify right side
    27,862.21x = 381,968,223.40
  5. Step 5: Solve for x
    x = 381,968,223.40/27,862.21
  6. Step 6: Final answer
    x = 13,709.19

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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.