Home / 33,720.90-50,589.50-12,661.17

Finding the Fourth Proportional to 33,720.90, 50,589.50 and 12,661.17

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Solution

The fourth proportional to 33,720.90, 50,589.50 and 12,661.17 is: 18,994.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,720.90 : 50,589.50 = 12,661.17 : x
  2. Step 2: Convert to fraction form
    33,720.90/50,589.50 = 12,661.17/x
  3. Step 3: Cross multiply
    33,720.90x = 50,589.50 × 12,661.17
  4. Step 4: Simplify right side
    33,720.90x = 640,522,196.41
  5. Step 5: Solve for x
    x = 640,522,196.41/33,720.90
  6. Step 6: Final answer
    x = 18,994.81

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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.