Home / 31,636.08-43,656.48-18,198.18

Finding the Fourth Proportional to 31,636.08, 43,656.48 and 18,198.18

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Solution

The fourth proportional to 31,636.08, 43,656.48 and 18,198.18 is: 25,112.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,636.08 : 43,656.48 = 18,198.18 : x
  2. Step 2: Convert to fraction form
    31,636.08/43,656.48 = 18,198.18/x
  3. Step 3: Cross multiply
    31,636.08x = 43,656.48 × 18,198.18
  4. Step 4: Simplify right side
    31,636.08x = 794,468,481.21
  5. Step 5: Solve for x
    x = 794,468,481.21/31,636.08
  6. Step 6: Final answer
    x = 25,112.73

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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.