Home / 20,367.13-30,550.67-5,577.20

Finding the Fourth Proportional to 20,367.13, 30,550.67 and 5,577.20

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Solution

The fourth proportional to 20,367.13, 30,550.67 and 5,577.20 is: 8,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,367.13 : 30,550.67 = 5,577.20 : x
  2. Step 2: Convert to fraction form
    20,367.13/30,550.67 = 5,577.20/x
  3. Step 3: Cross multiply
    20,367.13x = 30,550.67 × 5,577.20
  4. Step 4: Simplify right side
    20,367.13x = 170,387,168.84
  5. Step 5: Solve for x
    x = 170,387,168.84/20,367.13
  6. Step 6: Final answer
    x = 8,365.79

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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.