Home / 33,168.12-49,750.56-12,390

Finding the Fourth Proportional to 33,168.12, 49,750.56 and 12,390

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Solution

The fourth proportional to 33,168.12, 49,750.56 and 12,390 is: 18,584.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,168.12 : 49,750.56 = 12,390 : x
  2. Step 2: Convert to fraction form
    33,168.12/49,750.56 = 12,390/x
  3. Step 3: Cross multiply
    33,168.12x = 49,750.56 × 12,390
  4. Step 4: Simplify right side
    33,168.12x = 616,409,438.40
  5. Step 5: Solve for x
    x = 616,409,438.40/33,168.12
  6. Step 6: Final answer
    x = 18,584.39

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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.