Home / 33,119.20-49,640.40-13,384.80

Finding the Fourth Proportional to 33,119.20, 49,640.40 and 13,384.80

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Solution

The fourth proportional to 33,119.20, 49,640.40 and 13,384.80 is: 20,061.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,119.20 : 49,640.40 = 13,384.80 : x
  2. Step 2: Convert to fraction form
    33,119.20/49,640.40 = 13,384.80/x
  3. Step 3: Cross multiply
    33,119.20x = 49,640.40 × 13,384.80
  4. Step 4: Simplify right side
    33,119.20x = 664,426,825.92
  5. Step 5: Solve for x
    x = 664,426,825.92/33,119.20
  6. Step 6: Final answer
    x = 20,061.68

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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.