Home / 31,481.82-43,443.51-18,043.44

Finding the Fourth Proportional to 31,481.82, 43,443.51 and 18,043.44

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Solution

The fourth proportional to 31,481.82, 43,443.51 and 18,043.44 is: 24,899.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.82 : 43,443.51 = 18,043.44 : x
  2. Step 2: Convert to fraction form
    31,481.82/43,443.51 = 18,043.44/x
  3. Step 3: Cross multiply
    31,481.82x = 43,443.51 × 18,043.44
  4. Step 4: Simplify right side
    31,481.82x = 783,870,366.07
  5. Step 5: Solve for x
    x = 783,870,366.07/31,481.82
  6. Step 6: Final answer
    x = 24,899.14

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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.