Home / 31,684.97-43,736.19-18,261.57

Finding the Fourth Proportional to 31,684.97, 43,736.19 and 18,261.57

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Solution

The fourth proportional to 31,684.97, 43,736.19 and 18,261.57 is: 25,207.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,684.97 : 43,736.19 = 18,261.57 : x
  2. Step 2: Convert to fraction form
    31,684.97/43,736.19 = 18,261.57/x
  3. Step 3: Cross multiply
    31,684.97x = 43,736.19 × 18,261.57
  4. Step 4: Simplify right side
    31,684.97x = 798,691,403.91
  5. Step 5: Solve for x
    x = 798,691,403.91/31,684.97
  6. Step 6: Final answer
    x = 25,207.27

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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.