Home / 19,883.59-27,439.97-11,388.47

Finding the Fourth Proportional to 19,883.59, 27,439.97 and 11,388.47

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Solution

The fourth proportional to 19,883.59, 27,439.97 and 11,388.47 is: 15,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,883.59 : 27,439.97 = 11,388.47 : x
  2. Step 2: Convert to fraction form
    19,883.59/27,439.97 = 11,388.47/x
  3. Step 3: Cross multiply
    19,883.59x = 27,439.97 × 11,388.47
  4. Step 4: Simplify right side
    19,883.59x = 312,499,081.00
  5. Step 5: Solve for x
    x = 312,499,081.00/19,883.59
  6. Step 6: Final answer
    x = 15,716.43

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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.