Home / 27,696.99-38,221.97-15,122.01

Finding the Fourth Proportional to 27,696.99, 38,221.97 and 15,122.01

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Solution

The fourth proportional to 27,696.99, 38,221.97 and 15,122.01 is: 20,868.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,696.99 : 38,221.97 = 15,122.01 : x
  2. Step 2: Convert to fraction form
    27,696.99/38,221.97 = 15,122.01/x
  3. Step 3: Cross multiply
    27,696.99x = 38,221.97 × 15,122.01
  4. Step 4: Simplify right side
    27,696.99x = 577,992,936.95
  5. Step 5: Solve for x
    x = 577,992,936.95/27,696.99
  6. Step 6: Final answer
    x = 20,868.44

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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.