Home / 33,311.31-45,947.92-21,355.71

Finding the Fourth Proportional to 33,311.31, 45,947.92 and 21,355.71

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Solution

The fourth proportional to 33,311.31, 45,947.92 and 21,355.71 is: 29,456.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,311.31 : 45,947.92 = 21,355.71 : x
  2. Step 2: Convert to fraction form
    33,311.31/45,947.92 = 21,355.71/x
  3. Step 3: Cross multiply
    33,311.31x = 45,947.92 × 21,355.71
  4. Step 4: Simplify right side
    33,311.31x = 981,250,347.84
  5. Step 5: Solve for x
    x = 981,250,347.84/33,311.31
  6. Step 6: Final answer
    x = 29,456.97

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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.