Home / 20,222.25-27,903.42-11,722.71

Finding the Fourth Proportional to 20,222.25, 27,903.42 and 11,722.71

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Solution

The fourth proportional to 20,222.25, 27,903.42 and 11,722.71 is: 16,175.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.25 : 27,903.42 = 11,722.71 : x
  2. Step 2: Convert to fraction form
    20,222.25/27,903.42 = 11,722.71/x
  3. Step 3: Cross multiply
    20,222.25x = 27,903.42 × 11,722.71
  4. Step 4: Simplify right side
    20,222.25x = 327,103,700.67
  5. Step 5: Solve for x
    x = 327,103,700.67/20,222.25
  6. Step 6: Final answer
    x = 16,175.44

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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.