Home / 19,955.91-27,540.39-11,003.40

Finding the Fourth Proportional to 19,955.91, 27,540.39 and 11,003.40

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Solution

The fourth proportional to 19,955.91, 27,540.39 and 11,003.40 is: 15,185.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.91 : 27,540.39 = 11,003.40 : x
  2. Step 2: Convert to fraction form
    19,955.91/27,540.39 = 11,003.40/x
  3. Step 3: Cross multiply
    19,955.91x = 27,540.39 × 11,003.40
  4. Step 4: Simplify right side
    19,955.91x = 303,037,789.62
  5. Step 5: Solve for x
    x = 303,037,789.62/19,955.91
  6. Step 6: Final answer
    x = 15,185.37

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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.