Home / 21,621.44-32,388.96-19,794.08

Finding the Fourth Proportional to 21,621.44, 32,388.96 and 19,794.08

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Solution

The fourth proportional to 21,621.44, 32,388.96 and 19,794.08 is: 29,651.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621.44 : 32,388.96 = 19,794.08 : x
  2. Step 2: Convert to fraction form
    21,621.44/32,388.96 = 19,794.08/x
  3. Step 3: Cross multiply
    21,621.44x = 32,388.96 × 19,794.08
  4. Step 4: Simplify right side
    21,621.44x = 641,109,665.36
  5. Step 5: Solve for x
    x = 641,109,665.36/21,621.44
  6. Step 6: Final answer
    x = 29,651.57

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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.