Home / 19,991.66-27,588.35-11,039.16

Finding the Fourth Proportional to 19,991.66, 27,588.35 and 11,039.16

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Solution

The fourth proportional to 19,991.66, 27,588.35 and 11,039.16 is: 15,233.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.66 : 27,588.35 = 11,039.16 : x
  2. Step 2: Convert to fraction form
    19,991.66/27,588.35 = 11,039.16/x
  3. Step 3: Cross multiply
    19,991.66x = 27,588.35 × 11,039.16
  4. Step 4: Simplify right side
    19,991.66x = 304,552,154.59
  5. Step 5: Solve for x
    x = 304,552,154.59/19,991.66
  6. Step 6: Final answer
    x = 15,233.96

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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.