Home / 31,247.43-43,114.78-18,504.62

Finding the Fourth Proportional to 31,247.43, 43,114.78 and 18,504.62

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Solution

The fourth proportional to 31,247.43, 43,114.78 and 18,504.62 is: 25,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,247.43 : 43,114.78 = 18,504.62 : x
  2. Step 2: Convert to fraction form
    31,247.43/43,114.78 = 18,504.62/x
  3. Step 3: Cross multiply
    31,247.43x = 43,114.78 × 18,504.62
  4. Step 4: Simplify right side
    31,247.43x = 797,822,620.28
  5. Step 5: Solve for x
    x = 797,822,620.28/31,247.43
  6. Step 6: Final answer
    x = 25,532.42

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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.