Home / 31,481.52-43,443.18-18,043.44

Finding the Fourth Proportional to 31,481.52, 43,443.18 and 18,043.44

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Solution

The fourth proportional to 31,481.52, 43,443.18 and 18,043.44 is: 24,899.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.52 : 43,443.18 = 18,043.44 : x
  2. Step 2: Convert to fraction form
    31,481.52/43,443.18 = 18,043.44/x
  3. Step 3: Cross multiply
    31,481.52x = 43,443.18 × 18,043.44
  4. Step 4: Simplify right side
    31,481.52x = 783,864,411.74
  5. Step 5: Solve for x
    x = 783,864,411.74/31,481.52
  6. Step 6: Final answer
    x = 24,899.19

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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.