Home / 20,935.02-28,891.94-11,985.33

Finding the Fourth Proportional to 20,935.02, 28,891.94 and 11,985.33

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Solution

The fourth proportional to 20,935.02, 28,891.94 and 11,985.33 is: 16,540.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,935.02 : 28,891.94 = 11,985.33 : x
  2. Step 2: Convert to fraction form
    20,935.02/28,891.94 = 11,985.33/x
  3. Step 3: Cross multiply
    20,935.02x = 28,891.94 × 11,985.33
  4. Step 4: Simplify right side
    20,935.02x = 346,279,375.31
  5. Step 5: Solve for x
    x = 346,279,375.31/20,935.02
  6. Step 6: Final answer
    x = 16,540.68

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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.