Home / 20,288.54-27,996.37-11,334.80

Finding the Fourth Proportional to 20,288.54, 27,996.37 and 11,334.80

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Solution

The fourth proportional to 20,288.54, 27,996.37 and 11,334.80 is: 15,641.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.54 : 27,996.37 = 11,334.80 : x
  2. Step 2: Convert to fraction form
    20,288.54/27,996.37 = 11,334.80/x
  3. Step 3: Cross multiply
    20,288.54x = 27,996.37 × 11,334.80
  4. Step 4: Simplify right side
    20,288.54x = 317,333,296.33
  5. Step 5: Solve for x
    x = 317,333,296.33/20,288.54
  6. Step 6: Final answer
    x = 15,641.01

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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.