Home / 31,227.45-43,107.96-19,912.14

Finding the Fourth Proportional to 31,227.45, 43,107.96 and 19,912.14

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Solution

The fourth proportional to 31,227.45, 43,107.96 and 19,912.14 is: 27,487.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,227.45 : 43,107.96 = 19,912.14 : x
  2. Step 2: Convert to fraction form
    31,227.45/43,107.96 = 19,912.14/x
  3. Step 3: Cross multiply
    31,227.45x = 43,107.96 × 19,912.14
  4. Step 4: Simplify right side
    31,227.45x = 858,371,734.63
  5. Step 5: Solve for x
    x = 858,371,734.63/31,227.45
  6. Step 6: Final answer
    x = 27,487.73

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1.5x scale

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.