Home / 18,019.88-27,032.40-5,540.95

Finding the Fourth Proportional to 18,019.88, 27,032.40 and 5,540.95

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Solution

The fourth proportional to 18,019.88, 27,032.40 and 5,540.95 is: 8,312.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.88 : 27,032.40 = 5,540.95 : x
  2. Step 2: Convert to fraction form
    18,019.88/27,032.40 = 5,540.95/x
  3. Step 3: Cross multiply
    18,019.88x = 27,032.40 × 5,540.95
  4. Step 4: Simplify right side
    18,019.88x = 149,785,176.78
  5. Step 5: Solve for x
    x = 149,785,176.78/18,019.88
  6. Step 6: Final answer
    x = 8,312.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.