Home / 27,696.37-38,220.79-15,121.12

Finding the Fourth Proportional to 27,696.37, 38,220.79 and 15,121.12

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Solution

The fourth proportional to 27,696.37, 38,220.79 and 15,121.12 is: 20,867.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,696.37 : 38,220.79 = 15,121.12 : x
  2. Step 2: Convert to fraction form
    27,696.37/38,220.79 = 15,121.12/x
  3. Step 3: Cross multiply
    27,696.37x = 38,220.79 × 15,121.12
  4. Step 4: Simplify right side
    27,696.37x = 577,941,018.73
  5. Step 5: Solve for x
    x = 577,941,018.73/27,696.37
  6. Step 6: Final answer
    x = 20,867.03

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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.