Home / 39,942.04-55,121.80-22,951.78

Finding the Fourth Proportional to 39,942.04, 55,121.80 and 22,951.78

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Solution

The fourth proportional to 39,942.04, 55,121.80 and 22,951.78 is: 31,674.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,942.04 : 55,121.80 = 22,951.78 : x
  2. Step 2: Convert to fraction form
    39,942.04/55,121.80 = 22,951.78/x
  3. Step 3: Cross multiply
    39,942.04x = 55,121.80 × 22,951.78
  4. Step 4: Simplify right side
    39,942.04x = 1,265,143,426.80
  5. Step 5: Solve for x
    x = 1,265,143,426.80/39,942.04
  6. Step 6: Final answer
    x = 31,674.48

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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.