Home / 15,481.80-23,231.95-5,621.84

Finding the Fourth Proportional to 15,481.80, 23,231.95 and 5,621.84

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Solution

The fourth proportional to 15,481.80, 23,231.95 and 5,621.84 is: 8,436.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481.80 : 23,231.95 = 5,621.84 : x
  2. Step 2: Convert to fraction form
    15,481.80/23,231.95 = 5,621.84/x
  3. Step 3: Cross multiply
    15,481.80x = 23,231.95 × 5,621.84
  4. Step 4: Simplify right side
    15,481.80x = 130,606,175.57
  5. Step 5: Solve for x
    x = 130,606,175.57/15,481.80
  6. Step 6: Final answer
    x = 8,436.11

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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.