Home / 33,280.10-49,895.19-20,129.78

Finding the Fourth Proportional to 33,280.10, 49,895.19 and 20,129.78

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Solution

The fourth proportional to 33,280.10, 49,895.19 and 20,129.78 is: 30,179.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,280.10 : 49,895.19 = 20,129.78 : x
  2. Step 2: Convert to fraction form
    33,280.10/49,895.19 = 20,129.78/x
  3. Step 3: Cross multiply
    33,280.10x = 49,895.19 × 20,129.78
  4. Step 4: Simplify right side
    33,280.10x = 1,004,379,197.76
  5. Step 5: Solve for x
    x = 1,004,379,197.76/33,280.10
  6. Step 6: Final answer
    x = 30,179.57

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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.