Home / 20,232.11-27,921.54-11,279.59

Finding the Fourth Proportional to 20,232.11, 27,921.54 and 11,279.59

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Solution

The fourth proportional to 20,232.11, 27,921.54 and 11,279.59 is: 15,566.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.11 : 27,921.54 = 11,279.59 : x
  2. Step 2: Convert to fraction form
    20,232.11/27,921.54 = 11,279.59/x
  3. Step 3: Cross multiply
    20,232.11x = 27,921.54 × 11,279.59
  4. Step 4: Simplify right side
    20,232.11x = 314,943,453.56
  5. Step 5: Solve for x
    x = 314,943,453.56/20,232.11
  6. Step 6: Final answer
    x = 15,566.51

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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.