Home / 18,069.20-27,103.60-4,921.48

Finding the Fourth Proportional to 18,069.20, 27,103.60 and 4,921.48

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Solution

The fourth proportional to 18,069.20, 27,103.60 and 4,921.48 is: 7,382.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,069.20 : 27,103.60 = 4,921.48 : x
  2. Step 2: Convert to fraction form
    18,069.20/27,103.60 = 4,921.48/x
  3. Step 3: Cross multiply
    18,069.20x = 27,103.60 × 4,921.48
  4. Step 4: Simplify right side
    18,069.20x = 133,389,825.33
  5. Step 5: Solve for x
    x = 133,389,825.33/18,069.20
  6. Step 6: Final answer
    x = 7,382.17

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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.