Home / 20,562.36-30,843.62-4,979.96

Finding the Fourth Proportional to 20,562.36, 30,843.62 and 4,979.96

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Solution

The fourth proportional to 20,562.36, 30,843.62 and 4,979.96 is: 7,469.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.36 : 30,843.62 = 4,979.96 : x
  2. Step 2: Convert to fraction form
    20,562.36/30,843.62 = 4,979.96/x
  3. Step 3: Cross multiply
    20,562.36x = 30,843.62 × 4,979.96
  4. Step 4: Simplify right side
    20,562.36x = 153,599,993.86
  5. Step 5: Solve for x
    x = 153,599,993.86/20,562.36
  6. Step 6: Final answer
    x = 7,469.96

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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.