Home / 20,217.88-27,899.92-11,834.20

Finding the Fourth Proportional to 20,217.88, 27,899.92 and 11,834.20

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Solution

The fourth proportional to 20,217.88, 27,899.92 and 11,834.20 is: 16,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.88 : 27,899.92 = 11,834.20 : x
  2. Step 2: Convert to fraction form
    20,217.88/27,899.92 = 11,834.20/x
  3. Step 3: Cross multiply
    20,217.88x = 27,899.92 × 11,834.20
  4. Step 4: Simplify right side
    20,217.88x = 330,173,233.26
  5. Step 5: Solve for x
    x = 330,173,233.26/20,217.88
  6. Step 6: Final answer
    x = 16,330.75

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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.