Home / 27,667.68-38,183.20-15,732.12

Finding the Fourth Proportional to 27,667.68, 38,183.20 and 15,732.12

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Solution

The fourth proportional to 27,667.68, 38,183.20 and 15,732.12 is: 21,711.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,667.68 : 38,183.20 = 15,732.12 : x
  2. Step 2: Convert to fraction form
    27,667.68/38,183.20 = 15,732.12/x
  3. Step 3: Cross multiply
    27,667.68x = 38,183.20 × 15,732.12
  4. Step 4: Simplify right side
    27,667.68x = 600,702,788.24
  5. Step 5: Solve for x
    x = 600,702,788.24/27,667.68
  6. Step 6: Final answer
    x = 21,711.36

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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.