Home / 20,021.48-27,629.10-11,069.36

Finding the Fourth Proportional to 20,021.48, 27,629.10 and 11,069.36

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Solution

The fourth proportional to 20,021.48, 27,629.10 and 11,069.36 is: 15,275.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.48 : 27,629.10 = 11,069.36 : x
  2. Step 2: Convert to fraction form
    20,021.48/27,629.10 = 11,069.36/x
  3. Step 3: Cross multiply
    20,021.48x = 27,629.10 × 11,069.36
  4. Step 4: Simplify right side
    20,021.48x = 305,836,419.84
  5. Step 5: Solve for x
    x = 305,836,419.84/20,021.48
  6. Step 6: Final answer
    x = 15,275.42

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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.