Home / 22,719.24-31,367.79-20,321.73

Finding the Fourth Proportional to 22,719.24, 31,367.79 and 20,321.73

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Solution

The fourth proportional to 22,719.24, 31,367.79 and 20,321.73 is: 28,057.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,719.24 : 31,367.79 = 20,321.73 : x
  2. Step 2: Convert to fraction form
    22,719.24/31,367.79 = 20,321.73/x
  3. Step 3: Cross multiply
    22,719.24x = 31,367.79 × 20,321.73
  4. Step 4: Simplify right side
    22,719.24x = 637,447,759.08
  5. Step 5: Solve for x
    x = 637,447,759.08/22,719.24
  6. Step 6: Final answer
    x = 28,057.62

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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.