Home / 28,400.11-39,198.83-17,653.09

Finding the Fourth Proportional to 28,400.11, 39,198.83 and 17,653.09

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Solution

The fourth proportional to 28,400.11, 39,198.83 and 17,653.09 is: 24,365.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.11 : 39,198.83 = 17,653.09 : x
  2. Step 2: Convert to fraction form
    28,400.11/39,198.83 = 17,653.09/x
  3. Step 3: Cross multiply
    28,400.11x = 39,198.83 × 17,653.09
  4. Step 4: Simplify right side
    28,400.11x = 691,980,473.88
  5. Step 5: Solve for x
    x = 691,980,473.88/28,400.11
  6. Step 6: Final answer
    x = 24,365.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.