Home / 20,696.67-28,559.43-11,619.96

Finding the Fourth Proportional to 20,696.67, 28,559.43 and 11,619.96

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Solution

The fourth proportional to 20,696.67, 28,559.43 and 11,619.96 is: 16,034.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.67 : 28,559.43 = 11,619.96 : x
  2. Step 2: Convert to fraction form
    20,696.67/28,559.43 = 11,619.96/x
  3. Step 3: Cross multiply
    20,696.67x = 28,559.43 × 11,619.96
  4. Step 4: Simplify right side
    20,696.67x = 331,859,434.22
  5. Step 5: Solve for x
    x = 331,859,434.22/20,696.67
  6. Step 6: Final answer
    x = 16,034.44

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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.