Home / 27,431.31-41,133.97-12,635.85

Finding the Fourth Proportional to 27,431.31, 41,133.97 and 12,635.85

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Solution

The fourth proportional to 27,431.31, 41,133.97 and 12,635.85 is: 18,947.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,431.31 : 41,133.97 = 12,635.85 : x
  2. Step 2: Convert to fraction form
    27,431.31/41,133.97 = 12,635.85/x
  3. Step 3: Cross multiply
    27,431.31x = 41,133.97 × 12,635.85
  4. Step 4: Simplify right side
    27,431.31x = 519,762,674.82
  5. Step 5: Solve for x
    x = 519,762,674.82/27,431.31
  6. Step 6: Final answer
    x = 18,947.79

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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.