Home / 31,676.94-43,713.99-18,243.18

Finding the Fourth Proportional to 31,676.94, 43,713.99 and 18,243.18

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Solution

The fourth proportional to 31,676.94, 43,713.99 and 18,243.18 is: 25,175.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,676.94 : 43,713.99 = 18,243.18 : x
  2. Step 2: Convert to fraction form
    31,676.94/43,713.99 = 18,243.18/x
  3. Step 3: Cross multiply
    31,676.94x = 43,713.99 × 18,243.18
  4. Step 4: Simplify right side
    31,676.94x = 797,482,188.09
  5. Step 5: Solve for x
    x = 797,482,188.09/31,676.94
  6. Step 6: Final answer
    x = 25,175.48

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Double scale
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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.