Home / 20,794.91-28,696.94-11,842.42

Finding the Fourth Proportional to 20,794.91, 28,696.94 and 11,842.42

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Solution

The fourth proportional to 20,794.91, 28,696.94 and 11,842.42 is: 16,342.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.91 : 28,696.94 = 11,842.42 : x
  2. Step 2: Convert to fraction form
    20,794.91/28,696.94 = 11,842.42/x
  3. Step 3: Cross multiply
    20,794.91x = 28,696.94 × 11,842.42
  4. Step 4: Simplify right side
    20,794.91x = 339,841,013.50
  5. Step 5: Solve for x
    x = 339,841,013.50/20,794.91
  6. Step 6: Final answer
    x = 16,342.51

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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.