Home / 27,697.24-38,221.99-15,121.99

Finding the Fourth Proportional to 27,697.24, 38,221.99 and 15,121.99

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Solution

The fourth proportional to 27,697.24, 38,221.99 and 15,121.99 is: 20,868.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,697.24 : 38,221.99 = 15,121.99 : x
  2. Step 2: Convert to fraction form
    27,697.24/38,221.99 = 15,121.99/x
  3. Step 3: Cross multiply
    27,697.24x = 38,221.99 × 15,121.99
  4. Step 4: Simplify right side
    27,697.24x = 577,992,550.56
  5. Step 5: Solve for x
    x = 577,992,550.56/27,697.24
  6. Step 6: Final answer
    x = 20,868.24

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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.