Home / 19,992.64-27,589.92-11,040.45

Finding the Fourth Proportional to 19,992.64, 27,589.92 and 11,040.45

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Solution

The fourth proportional to 19,992.64, 27,589.92 and 11,040.45 is: 15,235.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.64 : 27,589.92 = 11,040.45 : x
  2. Step 2: Convert to fraction form
    19,992.64/27,589.92 = 11,040.45/x
  3. Step 3: Cross multiply
    19,992.64x = 27,589.92 × 11,040.45
  4. Step 4: Simplify right side
    19,992.64x = 304,604,939.11
  5. Step 5: Solve for x
    x = 304,604,939.11/19,992.64
  6. Step 6: Final answer
    x = 15,235.86

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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.