Home / 19,955.78-27,540.22-11,003.27

Finding the Fourth Proportional to 19,955.78, 27,540.22 and 11,003.27

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Solution

The fourth proportional to 19,955.78, 27,540.22 and 11,003.27 is: 15,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.78 : 27,540.22 = 11,003.27 : x
  2. Step 2: Convert to fraction form
    19,955.78/27,540.22 = 11,003.27/x
  3. Step 3: Cross multiply
    19,955.78x = 27,540.22 × 11,003.27
  4. Step 4: Simplify right side
    19,955.78x = 303,032,559.12
  5. Step 5: Solve for x
    x = 303,032,559.12/19,955.78
  6. Step 6: Final answer
    x = 15,185.20

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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.