Home / 33,420.36-50,136.87-13,431.41

Finding the Fourth Proportional to 33,420.36, 50,136.87 and 13,431.41

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Solution

The fourth proportional to 33,420.36, 50,136.87 and 13,431.41 is: 20,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,420.36 : 50,136.87 = 13,431.41 : x
  2. Step 2: Convert to fraction form
    33,420.36/50,136.87 = 13,431.41/x
  3. Step 3: Cross multiply
    33,420.36x = 50,136.87 × 13,431.41
  4. Step 4: Simplify right side
    33,420.36x = 673,408,606.40
  5. Step 5: Solve for x
    x = 673,408,606.40/33,420.36
  6. Step 6: Final answer
    x = 20,149.65

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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.