Home / 20,795.32-28,696.17-11,843.74

Finding the Fourth Proportional to 20,795.32, 28,696.17 and 11,843.74

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Solution

The fourth proportional to 20,795.32, 28,696.17 and 11,843.74 is: 16,343.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.32 : 28,696.17 = 11,843.74 : x
  2. Step 2: Convert to fraction form
    20,795.32/28,696.17 = 11,843.74/x
  3. Step 3: Cross multiply
    20,795.32x = 28,696.17 × 11,843.74
  4. Step 4: Simplify right side
    20,795.32x = 339,869,976.48
  5. Step 5: Solve for x
    x = 339,869,976.48/20,795.32
  6. Step 6: Final answer
    x = 16,343.58

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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.