Home / 20,132.00-27,782.24-11,179.47

Finding the Fourth Proportional to 20,132.00, 27,782.24 and 11,179.47

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Solution

The fourth proportional to 20,132.00, 27,782.24 and 11,179.47 is: 15,427.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.00 : 27,782.24 = 11,179.47 : x
  2. Step 2: Convert to fraction form
    20,132.00/27,782.24 = 11,179.47/x
  3. Step 3: Cross multiply
    20,132.00x = 27,782.24 × 11,179.47
  4. Step 4: Simplify right side
    20,132.00x = 310,590,662.72
  5. Step 5: Solve for x
    x = 310,590,662.72/20,132.00
  6. Step 6: Final answer
    x = 15,427.71

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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.