Home / 33,120.75-49,681.16-13,399.48

Finding the Fourth Proportional to 33,120.75, 49,681.16 and 13,399.48

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Solution

The fourth proportional to 33,120.75, 49,681.16 and 13,399.48 is: 20,099.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,120.75 : 49,681.16 = 13,399.48 : x
  2. Step 2: Convert to fraction form
    33,120.75/49,681.16 = 13,399.48/x
  3. Step 3: Cross multiply
    33,120.75x = 49,681.16 × 13,399.48
  4. Step 4: Simplify right side
    33,120.75x = 665,701,709.80
  5. Step 5: Solve for x
    x = 665,701,709.80/33,120.75
  6. Step 6: Final answer
    x = 20,099.23

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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.