Home / 27,859.72-41,789.60-13,999

Finding the Fourth Proportional to 27,859.72, 41,789.60 and 13,999

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Solution

The fourth proportional to 27,859.72, 41,789.60 and 13,999 is: 20,998.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,859.72 : 41,789.60 = 13,999 : x
  2. Step 2: Convert to fraction form
    27,859.72/41,789.60 = 13,999/x
  3. Step 3: Cross multiply
    27,859.72x = 41,789.60 × 13,999
  4. Step 4: Simplify right side
    27,859.72x = 585,012,610.40
  5. Step 5: Solve for x
    x = 585,012,610.40/27,859.72
  6. Step 6: Final answer
    x = 20,998.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.