Home / 20,192.20-27,866.74-11,696.60

Finding the Fourth Proportional to 20,192.20, 27,866.74 and 11,696.60

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Solution

The fourth proportional to 20,192.20, 27,866.74 and 11,696.60 is: 16,142.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.20 : 27,866.74 = 11,696.60 : x
  2. Step 2: Convert to fraction form
    20,192.20/27,866.74 = 11,696.60/x
  3. Step 3: Cross multiply
    20,192.20x = 27,866.74 × 11,696.60
  4. Step 4: Simplify right side
    20,192.20x = 325,946,111.08
  5. Step 5: Solve for x
    x = 325,946,111.08/20,192.20
  6. Step 6: Final answer
    x = 16,142.18

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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.