Home / 33,188.96-45,765.60-21,252.80

Finding the Fourth Proportional to 33,188.96, 45,765.60 and 21,252.80

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Solution

The fourth proportional to 33,188.96, 45,765.60 and 21,252.80 is: 29,306.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,188.96 : 45,765.60 = 21,252.80 : x
  2. Step 2: Convert to fraction form
    33,188.96/45,765.60 = 21,252.80/x
  3. Step 3: Cross multiply
    33,188.96x = 45,765.60 × 21,252.80
  4. Step 4: Simplify right side
    33,188.96x = 972,647,143.68
  5. Step 5: Solve for x
    x = 972,647,143.68/33,188.96
  6. Step 6: Final answer
    x = 29,306.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.