Home / 20,725.43-31,081.66-9,026.87

Finding the Fourth Proportional to 20,725.43, 31,081.66 and 9,026.87

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Solution

The fourth proportional to 20,725.43, 31,081.66 and 9,026.87 is: 13,537.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.43 : 31,081.66 = 9,026.87 : x
  2. Step 2: Convert to fraction form
    20,725.43/31,081.66 = 9,026.87/x
  3. Step 3: Cross multiply
    20,725.43x = 31,081.66 × 9,026.87
  4. Step 4: Simplify right side
    20,725.43x = 280,570,104.20
  5. Step 5: Solve for x
    x = 280,570,104.20/20,725.43
  6. Step 6: Final answer
    x = 13,537.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.