Home / 33,231.31-45,833.28-21,295.76

Finding the Fourth Proportional to 33,231.31, 45,833.28 and 21,295.76

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Solution

The fourth proportional to 33,231.31, 45,833.28 and 21,295.76 is: 29,371.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,231.31 : 45,833.28 = 21,295.76 : x
  2. Step 2: Convert to fraction form
    33,231.31/45,833.28 = 21,295.76/x
  3. Step 3: Cross multiply
    33,231.31x = 45,833.28 × 21,295.76
  4. Step 4: Simplify right side
    33,231.31x = 976,054,221.87
  5. Step 5: Solve for x
    x = 976,054,221.87/33,231.31
  6. Step 6: Final answer
    x = 29,371.53

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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.