Home / 27,912.28-41,868.36-7,135.72

Finding the Fourth Proportional to 27,912.28, 41,868.36 and 7,135.72

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Solution

The fourth proportional to 27,912.28, 41,868.36 and 7,135.72 is: 10,703.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,912.28 : 41,868.36 = 7,135.72 : x
  2. Step 2: Convert to fraction form
    27,912.28/41,868.36 = 7,135.72/x
  3. Step 3: Cross multiply
    27,912.28x = 41,868.36 × 7,135.72
  4. Step 4: Simplify right side
    27,912.28x = 298,760,893.82
  5. Step 5: Solve for x
    x = 298,760,893.82/27,912.28
  6. Step 6: Final answer
    x = 10,703.56

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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.