Home / 19,991.72-27,588.38-11,039.04

Finding the Fourth Proportional to 19,991.72, 27,588.38 and 11,039.04

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Solution

The fourth proportional to 19,991.72, 27,588.38 and 11,039.04 is: 15,233.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.72 : 27,588.38 = 11,039.04 : x
  2. Step 2: Convert to fraction form
    19,991.72/27,588.38 = 11,039.04/x
  3. Step 3: Cross multiply
    19,991.72x = 27,588.38 × 11,039.04
  4. Step 4: Simplify right side
    19,991.72x = 304,549,230.36
  5. Step 5: Solve for x
    x = 304,549,230.36/19,991.72
  6. Step 6: Final answer
    x = 15,233.77

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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.