Home / 31,739.92-43,799.38-18,310.36

Finding the Fourth Proportional to 31,739.92, 43,799.38 and 18,310.36

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Solution

The fourth proportional to 31,739.92, 43,799.38 and 18,310.36 is: 25,267.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.92 : 43,799.38 = 18,310.36 : x
  2. Step 2: Convert to fraction form
    31,739.92/43,799.38 = 18,310.36/x
  3. Step 3: Cross multiply
    31,739.92x = 43,799.38 × 18,310.36
  4. Step 4: Simplify right side
    31,739.92x = 801,982,415.58
  5. Step 5: Solve for x
    x = 801,982,415.58/31,739.92
  6. Step 6: Final answer
    x = 25,267.31

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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.