Home / 33,986.40-50,967.48-12,920.84

Finding the Fourth Proportional to 33,986.40, 50,967.48 and 12,920.84

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Solution

The fourth proportional to 33,986.40, 50,967.48 and 12,920.84 is: 19,376.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,986.40 : 50,967.48 = 12,920.84 : x
  2. Step 2: Convert to fraction form
    33,986.40/50,967.48 = 12,920.84/x
  3. Step 3: Cross multiply
    33,986.40x = 50,967.48 × 12,920.84
  4. Step 4: Simplify right side
    33,986.40x = 658,542,399.45
  5. Step 5: Solve for x
    x = 658,542,399.45/33,986.40
  6. Step 6: Final answer
    x = 19,376.64

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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.