Home / 27,811.14-38,379.99-15,874.23

Finding the Fourth Proportional to 27,811.14, 38,379.99 and 15,874.23

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Solution

The fourth proportional to 27,811.14, 38,379.99 and 15,874.23 is: 21,906.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,811.14 : 38,379.99 = 15,874.23 : x
  2. Step 2: Convert to fraction form
    27,811.14/38,379.99 = 15,874.23/x
  3. Step 3: Cross multiply
    27,811.14x = 38,379.99 × 15,874.23
  4. Step 4: Simplify right side
    27,811.14x = 609,252,788.66
  5. Step 5: Solve for x
    x = 609,252,788.66/27,811.14
  6. Step 6: Final answer
    x = 21,906.79

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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.