Home / 19,202.66-28,738.94-11,811.80

Finding the Fourth Proportional to 19,202.66, 28,738.94 and 11,811.80

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Solution

The fourth proportional to 19,202.66, 28,738.94 and 11,811.80 is: 17,677.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,202.66 : 28,738.94 = 11,811.80 : x
  2. Step 2: Convert to fraction form
    19,202.66/28,738.94 = 11,811.80/x
  3. Step 3: Cross multiply
    19,202.66x = 28,738.94 × 11,811.80
  4. Step 4: Simplify right side
    19,202.66x = 339,458,611.49
  5. Step 5: Solve for x
    x = 339,458,611.49/19,202.66
  6. Step 6: Final answer
    x = 17,677.69

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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.