Home / 20,021.62-27,629.64-11,069.34

Finding the Fourth Proportional to 20,021.62, 27,629.64 and 11,069.34

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Solution

The fourth proportional to 20,021.62, 27,629.64 and 11,069.34 is: 15,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.62 : 27,629.64 = 11,069.34 : x
  2. Step 2: Convert to fraction form
    20,021.62/27,629.64 = 11,069.34/x
  3. Step 3: Cross multiply
    20,021.62x = 27,629.64 × 11,069.34
  4. Step 4: Simplify right side
    20,021.62x = 305,841,879.24
  5. Step 5: Solve for x
    x = 305,841,879.24/20,021.62
  6. Step 6: Final answer
    x = 15,275.58

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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.