Home / 19,583.07-27,021.92-11,517.09

Finding the Fourth Proportional to 19,583.07, 27,021.92 and 11,517.09

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Solution

The fourth proportional to 19,583.07, 27,021.92 and 11,517.09 is: 15,891.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,583.07 : 27,021.92 = 11,517.09 : x
  2. Step 2: Convert to fraction form
    19,583.07/27,021.92 = 11,517.09/x
  3. Step 3: Cross multiply
    19,583.07x = 27,021.92 × 11,517.09
  4. Step 4: Simplify right side
    19,583.07x = 311,213,827.03
  5. Step 5: Solve for x
    x = 311,213,827.03/19,583.07
  6. Step 6: Final answer
    x = 15,891.98

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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.