Home / 31,383.11-43,308.54-17,042.83

Finding the Fourth Proportional to 31,383.11, 43,308.54 and 17,042.83

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Solution

The fourth proportional to 31,383.11, 43,308.54 and 17,042.83 is: 23,519.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,383.11 : 43,308.54 = 17,042.83 : x
  2. Step 2: Convert to fraction form
    31,383.11/43,308.54 = 17,042.83/x
  3. Step 3: Cross multiply
    31,383.11x = 43,308.54 × 17,042.83
  4. Step 4: Simplify right side
    31,383.11x = 738,099,976.50
  5. Step 5: Solve for x
    x = 738,099,976.50/31,383.11
  6. Step 6: Final answer
    x = 23,519.02

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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.