Home / 31,676.82-43,716.15-18,247.74

Finding the Fourth Proportional to 31,676.82, 43,716.15 and 18,247.74

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Solution

The fourth proportional to 31,676.82, 43,716.15 and 18,247.74 is: 25,183.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,676.82 : 43,716.15 = 18,247.74 : x
  2. Step 2: Convert to fraction form
    31,676.82/43,716.15 = 18,247.74/x
  3. Step 3: Cross multiply
    31,676.82x = 43,716.15 × 18,247.74
  4. Step 4: Simplify right side
    31,676.82x = 797,720,939.00
  5. Step 5: Solve for x
    x = 797,720,939.00/31,676.82
  6. Step 6: Final answer
    x = 25,183.11

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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.