Home / 19,843.30-27,381.94-11,775.56

Finding the Fourth Proportional to 19,843.30, 27,381.94 and 11,775.56

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Solution

The fourth proportional to 19,843.30, 27,381.94 and 11,775.56 is: 16,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.30 : 27,381.94 = 11,775.56 : x
  2. Step 2: Convert to fraction form
    19,843.30/27,381.94 = 11,775.56/x
  3. Step 3: Cross multiply
    19,843.30x = 27,381.94 × 11,775.56
  4. Step 4: Simplify right side
    19,843.30x = 322,437,677.39
  5. Step 5: Solve for x
    x = 322,437,677.39/19,843.30
  6. Step 6: Final answer
    x = 16,249.20

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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.