Home / 31,218.05-43,081.66-17,789.02

Finding the Fourth Proportional to 31,218.05, 43,081.66 and 17,789.02

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Solution

The fourth proportional to 31,218.05, 43,081.66 and 17,789.02 is: 24,549.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,218.05 : 43,081.66 = 17,789.02 : x
  2. Step 2: Convert to fraction form
    31,218.05/43,081.66 = 17,789.02/x
  3. Step 3: Cross multiply
    31,218.05x = 43,081.66 × 17,789.02
  4. Step 4: Simplify right side
    31,218.05x = 766,380,295.96
  5. Step 5: Solve for x
    x = 766,380,295.96/31,218.05
  6. Step 6: Final answer
    x = 24,549.27

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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.