Home / 27,757.68-38,269.44-20,205.24

Finding the Fourth Proportional to 27,757.68, 38,269.44 and 20,205.24

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Solution

The fourth proportional to 27,757.68, 38,269.44 and 20,205.24 is: 27,856.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,757.68 : 38,269.44 = 20,205.24 : x
  2. Step 2: Convert to fraction form
    27,757.68/38,269.44 = 20,205.24/x
  3. Step 3: Cross multiply
    27,757.68x = 38,269.44 × 20,205.24
  4. Step 4: Simplify right side
    27,757.68x = 773,243,219.87
  5. Step 5: Solve for x
    x = 773,243,219.87/27,757.68
  6. Step 6: Final answer
    x = 27,856.91

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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.