Home / 20,568.48-30,853.92-5,778.55

Finding the Fourth Proportional to 20,568.48, 30,853.92 and 5,778.55

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Solution

The fourth proportional to 20,568.48, 30,853.92 and 5,778.55 is: 8,668.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.48 : 30,853.92 = 5,778.55 : x
  2. Step 2: Convert to fraction form
    20,568.48/30,853.92 = 5,778.55/x
  3. Step 3: Cross multiply
    20,568.48x = 30,853.92 × 5,778.55
  4. Step 4: Simplify right side
    20,568.48x = 178,290,994.60
  5. Step 5: Solve for x
    x = 178,290,994.60/20,568.48
  6. Step 6: Final answer
    x = 8,668.16

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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.