Home / 27,118.22-37,396.85-21,147.71

Finding the Fourth Proportional to 27,118.22, 37,396.85 and 21,147.71

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Solution

The fourth proportional to 27,118.22, 37,396.85 and 21,147.71 is: 29,163.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,118.22 : 37,396.85 = 21,147.71 : x
  2. Step 2: Convert to fraction form
    27,118.22/37,396.85 = 21,147.71/x
  3. Step 3: Cross multiply
    27,118.22x = 37,396.85 × 21,147.71
  4. Step 4: Simplify right side
    27,118.22x = 790,857,698.09
  5. Step 5: Solve for x
    x = 790,857,698.09/27,118.22
  6. Step 6: Final answer
    x = 29,163.34

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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.