Home / 27,696.24-38,220.62-15,120.99

Finding the Fourth Proportional to 27,696.24, 38,220.62 and 15,120.99

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Solution

The fourth proportional to 27,696.24, 38,220.62 and 15,120.99 is: 20,866.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,696.24 : 38,220.62 = 15,120.99 : x
  2. Step 2: Convert to fraction form
    27,696.24/38,220.62 = 15,120.99/x
  3. Step 3: Cross multiply
    27,696.24x = 38,220.62 × 15,120.99
  4. Step 4: Simplify right side
    27,696.24x = 577,933,537.21
  5. Step 5: Solve for x
    x = 577,933,537.21/27,696.24
  6. Step 6: Final answer
    x = 20,866.86

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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.