Home / 18,020.62-27,030.84-4,872.94

Finding the Fourth Proportional to 18,020.62, 27,030.84 and 4,872.94

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Solution

The fourth proportional to 18,020.62, 27,030.84 and 4,872.94 is: 7,309.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,020.62 : 27,030.84 = 4,872.94 : x
  2. Step 2: Convert to fraction form
    18,020.62/27,030.84 = 4,872.94/x
  3. Step 3: Cross multiply
    18,020.62x = 27,030.84 × 4,872.94
  4. Step 4: Simplify right side
    18,020.62x = 131,719,661.47
  5. Step 5: Solve for x
    x = 131,719,661.47/18,020.62
  6. Step 6: Final answer
    x = 7,309.39

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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.