Home / 33,186.96-49,785.30-12,128.04

Finding the Fourth Proportional to 33,186.96, 49,785.30 and 12,128.04

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Solution

The fourth proportional to 33,186.96, 49,785.30 and 12,128.04 is: 18,193.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,186.96 : 49,785.30 = 12,128.04 : x
  2. Step 2: Convert to fraction form
    33,186.96/49,785.30 = 12,128.04/x
  3. Step 3: Cross multiply
    33,186.96x = 49,785.30 × 12,128.04
  4. Step 4: Simplify right side
    33,186.96x = 603,798,109.81
  5. Step 5: Solve for x
    x = 603,798,109.81/33,186.96
  6. Step 6: Final answer
    x = 18,193.84

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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.