Home / 27,876.94-38,469.53-15,130.15

Finding the Fourth Proportional to 27,876.94, 38,469.53 and 15,130.15

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Solution

The fourth proportional to 27,876.94, 38,469.53 and 15,130.15 is: 20,879.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,876.94 : 38,469.53 = 15,130.15 : x
  2. Step 2: Convert to fraction form
    27,876.94/38,469.53 = 15,130.15/x
  3. Step 3: Cross multiply
    27,876.94x = 38,469.53 × 15,130.15
  4. Step 4: Simplify right side
    27,876.94x = 582,049,759.33
  5. Step 5: Solve for x
    x = 582,049,759.33/27,876.94
  6. Step 6: Final answer
    x = 20,879.26

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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.