Home / 20,481.40-30,693.24-16,302.82

Finding the Fourth Proportional to 20,481.40, 30,693.24 and 16,302.82

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Solution

The fourth proportional to 20,481.40, 30,693.24 and 16,302.82 is: 24,431.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,481.40 : 30,693.24 = 16,302.82 : x
  2. Step 2: Convert to fraction form
    20,481.40/30,693.24 = 16,302.82/x
  3. Step 3: Cross multiply
    20,481.40x = 30,693.24 × 16,302.82
  4. Step 4: Simplify right side
    20,481.40x = 500,386,366.94
  5. Step 5: Solve for x
    x = 500,386,366.94/20,481.40
  6. Step 6: Final answer
    x = 24,431.26

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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.