Home / 20,231.72-30,294.41-16,261.91

Finding the Fourth Proportional to 20,231.72, 30,294.41 and 16,261.91

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Solution

The fourth proportional to 20,231.72, 30,294.41 and 16,261.91 is: 24,350.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.72 : 30,294.41 = 16,261.91 : x
  2. Step 2: Convert to fraction form
    20,231.72/30,294.41 = 16,261.91/x
  3. Step 3: Cross multiply
    20,231.72x = 30,294.41 × 16,261.91
  4. Step 4: Simplify right side
    20,231.72x = 492,644,736.14
  5. Step 5: Solve for x
    x = 492,644,736.14/20,231.72
  6. Step 6: Final answer
    x = 24,350.12

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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.