Home / 20,433.43-28,194.56-11,481.31

Finding the Fourth Proportional to 20,433.43, 28,194.56 and 11,481.31

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Solution

The fourth proportional to 20,433.43, 28,194.56 and 11,481.31 is: 15,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.43 : 28,194.56 = 11,481.31 : x
  2. Step 2: Convert to fraction form
    20,433.43/28,194.56 = 11,481.31/x
  3. Step 3: Cross multiply
    20,433.43x = 28,194.56 × 11,481.31
  4. Step 4: Simplify right side
    20,433.43x = 323,710,569.15
  5. Step 5: Solve for x
    x = 323,710,569.15/20,433.43
  6. Step 6: Final answer
    x = 15,842.20

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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.