Home / 19,991.26-27,704.62-19,709.38

Finding the Fourth Proportional to 19,991.26, 27,704.62 and 19,709.38

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Solution

The fourth proportional to 19,991.26, 27,704.62 and 19,709.38 is: 27,313.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.26 : 27,704.62 = 19,709.38 : x
  2. Step 2: Convert to fraction form
    19,991.26/27,704.62 = 19,709.38/x
  3. Step 3: Cross multiply
    19,991.26x = 27,704.62 × 19,709.38
  4. Step 4: Simplify right side
    19,991.26x = 546,040,883.34
  5. Step 5: Solve for x
    x = 546,040,883.34/19,991.26
  6. Step 6: Final answer
    x = 27,313.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.