Home / 20,561.80-30,844.62-5,770.65

Finding the Fourth Proportional to 20,561.80, 30,844.62 and 5,770.65

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Solution

The fourth proportional to 20,561.80, 30,844.62 and 5,770.65 is: 8,656.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561.80 : 30,844.62 = 5,770.65 : x
  2. Step 2: Convert to fraction form
    20,561.80/30,844.62 = 5,770.65/x
  3. Step 3: Cross multiply
    20,561.80x = 30,844.62 × 5,770.65
  4. Step 4: Simplify right side
    20,561.80x = 177,993,352.18
  5. Step 5: Solve for x
    x = 177,993,352.18/20,561.80
  6. Step 6: Final answer
    x = 8,656.51

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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.