Home / 20,796.06-28,701.27-11,841.78

Finding the Fourth Proportional to 20,796.06, 28,701.27 and 11,841.78

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Solution

The fourth proportional to 20,796.06, 28,701.27 and 11,841.78 is: 16,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.06 : 28,701.27 = 11,841.78 : x
  2. Step 2: Convert to fraction form
    20,796.06/28,701.27 = 11,841.78/x
  3. Step 3: Cross multiply
    20,796.06x = 28,701.27 × 11,841.78
  4. Step 4: Simplify right side
    20,796.06x = 339,874,125.06
  5. Step 5: Solve for x
    x = 339,874,125.06/20,796.06
  6. Step 6: Final answer
    x = 16,343.20

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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.