Home / 15,578.47-23,367.84-3,891.70

Finding the Fourth Proportional to 15,578.47, 23,367.84 and 3,891.70

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Solution

The fourth proportional to 15,578.47, 23,367.84 and 3,891.70 is: 5,837.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,578.47 : 23,367.84 = 3,891.70 : x
  2. Step 2: Convert to fraction form
    15,578.47/23,367.84 = 3,891.70/x
  3. Step 3: Cross multiply
    15,578.47x = 23,367.84 × 3,891.70
  4. Step 4: Simplify right side
    15,578.47x = 90,940,622.93
  5. Step 5: Solve for x
    x = 90,940,622.93/15,578.47
  6. Step 6: Final answer
    x = 5,837.58

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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.