Home / 20,562.19-30,843.38-4,979.81

Finding the Fourth Proportional to 20,562.19, 30,843.38 and 4,979.81

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Solution

The fourth proportional to 20,562.19, 30,843.38 and 4,979.81 is: 7,469.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.19 : 30,843.38 = 4,979.81 : x
  2. Step 2: Convert to fraction form
    20,562.19/30,843.38 = 4,979.81/x
  3. Step 3: Cross multiply
    20,562.19x = 30,843.38 × 4,979.81
  4. Step 4: Simplify right side
    20,562.19x = 153,594,261.72
  5. Step 5: Solve for x
    x = 153,594,261.72/20,562.19
  6. Step 6: Final answer
    x = 7,469.74

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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.