Home / 20,494.87-30,743.41-6,456.00

Finding the Fourth Proportional to 20,494.87, 30,743.41 and 6,456.00

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Solution

The fourth proportional to 20,494.87, 30,743.41 and 6,456.00 is: 9,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.87 : 30,743.41 = 6,456.00 : x
  2. Step 2: Convert to fraction form
    20,494.87/30,743.41 = 6,456.00/x
  3. Step 3: Cross multiply
    20,494.87x = 30,743.41 × 6,456.00
  4. Step 4: Simplify right side
    20,494.87x = 198,479,268.96
  5. Step 5: Solve for x
    x = 198,479,268.96/20,494.87
  6. Step 6: Final answer
    x = 9,684.34

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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.