Home / 33,020.91-45,556.90-21,696.51

Finding the Fourth Proportional to 33,020.91, 45,556.90 and 21,696.51

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Solution

The fourth proportional to 33,020.91, 45,556.90 and 21,696.51 is: 29,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,020.91 : 45,556.90 = 21,696.51 : x
  2. Step 2: Convert to fraction form
    33,020.91/45,556.90 = 21,696.51/x
  3. Step 3: Cross multiply
    33,020.91x = 45,556.90 × 21,696.51
  4. Step 4: Simplify right side
    33,020.91x = 988,425,454.39
  5. Step 5: Solve for x
    x = 988,425,454.39/33,020.91
  6. Step 6: Final answer
    x = 29,933.32

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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.