Home / 33,163.66-45,751.32-21,818.56

Finding the Fourth Proportional to 33,163.66, 45,751.32 and 21,818.56

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Solution

The fourth proportional to 33,163.66, 45,751.32 and 21,818.56 is: 30,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,163.66 : 45,751.32 = 21,818.56 : x
  2. Step 2: Convert to fraction form
    33,163.66/45,751.32 = 21,818.56/x
  3. Step 3: Cross multiply
    33,163.66x = 45,751.32 × 21,818.56
  4. Step 4: Simplify right side
    33,163.66x = 998,227,920.50
  5. Step 5: Solve for x
    x = 998,227,920.50/33,163.66
  6. Step 6: Final answer
    x = 30,100.05

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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.