Home / 20,577.20-30,867.15-5,786.60

Finding the Fourth Proportional to 20,577.20, 30,867.15 and 5,786.60

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Solution

The fourth proportional to 20,577.20, 30,867.15 and 5,786.60 is: 8,680.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.20 : 30,867.15 = 5,786.60 : x
  2. Step 2: Convert to fraction form
    20,577.20/30,867.15 = 5,786.60/x
  3. Step 3: Cross multiply
    20,577.20x = 30,867.15 × 5,786.60
  4. Step 4: Simplify right side
    20,577.20x = 178,615,850.19
  5. Step 5: Solve for x
    x = 178,615,850.19/20,577.20
  6. Step 6: Final answer
    x = 8,680.28

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1.5x scale

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.