Home / 33,221.49-45,849.21-20,471.95

Finding the Fourth Proportional to 33,221.49, 45,849.21 and 20,471.95

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Solution

The fourth proportional to 33,221.49, 45,849.21 and 20,471.95 is: 28,253.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,221.49 : 45,849.21 = 20,471.95 : x
  2. Step 2: Convert to fraction form
    33,221.49/45,849.21 = 20,471.95/x
  3. Step 3: Cross multiply
    33,221.49x = 45,849.21 × 20,471.95
  4. Step 4: Simplify right side
    33,221.49x = 938,622,734.66
  5. Step 5: Solve for x
    x = 938,622,734.66/33,221.49
  6. Step 6: Final answer
    x = 28,253.48

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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.