Home / 27,825.72-38,399.22-15,078.61

Finding the Fourth Proportional to 27,825.72, 38,399.22 and 15,078.61

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Solution

The fourth proportional to 27,825.72, 38,399.22 and 15,078.61 is: 20,808.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,825.72 : 38,399.22 = 15,078.61 : x
  2. Step 2: Convert to fraction form
    27,825.72/38,399.22 = 15,078.61/x
  3. Step 3: Cross multiply
    27,825.72x = 38,399.22 × 15,078.61
  4. Step 4: Simplify right side
    27,825.72x = 579,006,862.68
  5. Step 5: Solve for x
    x = 579,006,862.68/27,825.72
  6. Step 6: Final answer
    x = 20,808.33

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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.