Home / 33,118.80-45,687.87-19,680.54

Finding the Fourth Proportional to 33,118.80, 45,687.87 and 19,680.54

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Solution

The fourth proportional to 33,118.80, 45,687.87 and 19,680.54 is: 27,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,118.80 : 45,687.87 = 19,680.54 : x
  2. Step 2: Convert to fraction form
    33,118.80/45,687.87 = 19,680.54/x
  3. Step 3: Cross multiply
    33,118.80x = 45,687.87 × 19,680.54
  4. Step 4: Simplify right side
    33,118.80x = 899,161,953.05
  5. Step 5: Solve for x
    x = 899,161,953.05/33,118.80
  6. Step 6: Final answer
    x = 27,149.59

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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.