Home / 31,578.49-47,351.26-27,981.15

Finding the Fourth Proportional to 31,578.49, 47,351.26 and 27,981.15

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Solution

The fourth proportional to 31,578.49, 47,351.26 and 27,981.15 is: 41,957.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,578.49 : 47,351.26 = 27,981.15 : x
  2. Step 2: Convert to fraction form
    31,578.49/47,351.26 = 27,981.15/x
  3. Step 3: Cross multiply
    31,578.49x = 47,351.26 × 27,981.15
  4. Step 4: Simplify right side
    31,578.49x = 1,324,942,708.75
  5. Step 5: Solve for x
    x = 1,324,942,708.75/31,578.49
  6. Step 6: Final answer
    x = 41,957.13

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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.