Home / 19,949.12-27,525.12-11,991.68

Finding the Fourth Proportional to 19,949.12, 27,525.12 and 11,991.68

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Solution

The fourth proportional to 19,949.12, 27,525.12 and 11,991.68 is: 16,545.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,949.12 : 27,525.12 = 11,991.68 : x
  2. Step 2: Convert to fraction form
    19,949.12/27,525.12 = 11,991.68/x
  3. Step 3: Cross multiply
    19,949.12x = 27,525.12 × 11,991.68
  4. Step 4: Simplify right side
    19,949.12x = 330,072,431.00
  5. Step 5: Solve for x
    x = 330,072,431.00/19,949.12
  6. Step 6: Final answer
    x = 16,545.71

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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.