Home / 33,420.30-50,136.77-13,431.35

Finding the Fourth Proportional to 33,420.30, 50,136.77 and 13,431.35

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Solution

The fourth proportional to 33,420.30, 50,136.77 and 13,431.35 is: 20,149.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,420.30 : 50,136.77 = 13,431.35 : x
  2. Step 2: Convert to fraction form
    33,420.30/50,136.77 = 13,431.35/x
  3. Step 3: Cross multiply
    33,420.30x = 50,136.77 × 13,431.35
  4. Step 4: Simplify right side
    33,420.30x = 673,404,187.90
  5. Step 5: Solve for x
    x = 673,404,187.90/33,420.30
  6. Step 6: Final answer
    x = 20,149.56

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1.5x scale

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.