Home / 33,310.76-45,956.88-21,380.66

Finding the Fourth Proportional to 33,310.76, 45,956.88 and 21,380.66

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Solution

The fourth proportional to 33,310.76, 45,956.88 and 21,380.66 is: 29,497.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,310.76 : 45,956.88 = 21,380.66 : x
  2. Step 2: Convert to fraction form
    33,310.76/45,956.88 = 21,380.66/x
  3. Step 3: Cross multiply
    33,310.76x = 45,956.88 × 21,380.66
  4. Step 4: Simplify right side
    33,310.76x = 982,588,425.94
  5. Step 5: Solve for x
    x = 982,588,425.94/33,310.76
  6. Step 6: Final answer
    x = 29,497.63

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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.