Home / 20,021.99-27,628.09-11,068.25

Finding the Fourth Proportional to 20,021.99, 27,628.09 and 11,068.25

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Solution

The fourth proportional to 20,021.99, 27,628.09 and 11,068.25 is: 15,272.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.99 : 27,628.09 = 11,068.25 : x
  2. Step 2: Convert to fraction form
    20,021.99/27,628.09 = 11,068.25/x
  3. Step 3: Cross multiply
    20,021.99x = 27,628.09 × 11,068.25
  4. Step 4: Simplify right side
    20,021.99x = 305,794,441.33
  5. Step 5: Solve for x
    x = 305,794,441.33/20,021.99
  6. Step 6: Final answer
    x = 15,272.93

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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.