Home / 18,621.69-27,932.76-5,474.33

Finding the Fourth Proportional to 18,621.69, 27,932.76 and 5,474.33

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Solution

The fourth proportional to 18,621.69, 27,932.76 and 5,474.33 is: 8,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.69 : 27,932.76 = 5,474.33 : x
  2. Step 2: Convert to fraction form
    18,621.69/27,932.76 = 5,474.33/x
  3. Step 3: Cross multiply
    18,621.69x = 27,932.76 × 5,474.33
  4. Step 4: Simplify right side
    18,621.69x = 152,913,006.39
  5. Step 5: Solve for x
    x = 152,913,006.39/18,621.69
  6. Step 6: Final answer
    x = 8,211.55

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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.