Home / 27,391.68-37,790.37-20,238.84

Finding the Fourth Proportional to 27,391.68, 37,790.37 and 20,238.84

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Solution

The fourth proportional to 27,391.68, 37,790.37 and 20,238.84 is: 27,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,391.68 : 37,790.37 = 20,238.84 : x
  2. Step 2: Convert to fraction form
    27,391.68/37,790.37 = 20,238.84/x
  3. Step 3: Cross multiply
    27,391.68x = 37,790.37 × 20,238.84
  4. Step 4: Simplify right side
    27,391.68x = 764,833,251.97
  5. Step 5: Solve for x
    x = 764,833,251.97/27,391.68
  6. Step 6: Final answer
    x = 27,922.10

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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.