Home / 31,865.92-43,973.26-18,437.39

Finding the Fourth Proportional to 31,865.92, 43,973.26 and 18,437.39

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Solution

The fourth proportional to 31,865.92, 43,973.26 and 18,437.39 is: 25,442.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,865.92 : 43,973.26 = 18,437.39 : x
  2. Step 2: Convert to fraction form
    31,865.92/43,973.26 = 18,437.39/x
  3. Step 3: Cross multiply
    31,865.92x = 43,973.26 × 18,437.39
  4. Step 4: Simplify right side
    31,865.92x = 810,752,052.00
  5. Step 5: Solve for x
    x = 810,752,052.00/31,865.92
  6. Step 6: Final answer
    x = 25,442.61

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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.