Home / 20,085.37-27,716.24-11,132.71

Finding the Fourth Proportional to 20,085.37, 27,716.24 and 11,132.71

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Solution

The fourth proportional to 20,085.37, 27,716.24 and 11,132.71 is: 15,362.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.37 : 27,716.24 = 11,132.71 : x
  2. Step 2: Convert to fraction form
    20,085.37/27,716.24 = 11,132.71/x
  3. Step 3: Cross multiply
    20,085.37x = 27,716.24 × 11,132.71
  4. Step 4: Simplify right side
    20,085.37x = 308,556,820.75
  5. Step 5: Solve for x
    x = 308,556,820.75/20,085.37
  6. Step 6: Final answer
    x = 15,362.27

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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.