Home / 27,791.36-38,352.72-15,217.04

Finding the Fourth Proportional to 27,791.36, 38,352.72 and 15,217.04

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Solution

The fourth proportional to 27,791.36, 38,352.72 and 15,217.04 is: 20,999.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,791.36 : 38,352.72 = 15,217.04 : x
  2. Step 2: Convert to fraction form
    27,791.36/38,352.72 = 15,217.04/x
  3. Step 3: Cross multiply
    27,791.36x = 38,352.72 × 15,217.04
  4. Step 4: Simplify right side
    27,791.36x = 583,614,874.35
  5. Step 5: Solve for x
    x = 583,614,874.35/27,791.36
  6. Step 6: Final answer
    x = 20,999.87

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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.