Home / 20,696.82-28,561.59-11,265.36

Finding the Fourth Proportional to 20,696.82, 28,561.59 and 11,265.36

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Solution

The fourth proportional to 20,696.82, 28,561.59 and 11,265.36 is: 15,546.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.82 : 28,561.59 = 11,265.36 : x
  2. Step 2: Convert to fraction form
    20,696.82/28,561.59 = 11,265.36/x
  3. Step 3: Cross multiply
    20,696.82x = 28,561.59 × 11,265.36
  4. Step 4: Simplify right side
    20,696.82x = 321,756,593.52
  5. Step 5: Solve for x
    x = 321,756,593.52/20,696.82
  6. Step 6: Final answer
    x = 15,546.19

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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.