Home / 27,691.20-41,508.45-13,629.60

Finding the Fourth Proportional to 27,691.20, 41,508.45 and 13,629.60

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Solution

The fourth proportional to 27,691.20, 41,508.45 and 13,629.60 is: 20,430.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,691.20 : 41,508.45 = 13,629.60 : x
  2. Step 2: Convert to fraction form
    27,691.20/41,508.45 = 13,629.60/x
  3. Step 3: Cross multiply
    27,691.20x = 41,508.45 × 13,629.60
  4. Step 4: Simplify right side
    27,691.20x = 565,743,570.12
  5. Step 5: Solve for x
    x = 565,743,570.12/27,691.20
  6. Step 6: Final answer
    x = 20,430.45

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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.