Home / 20,134.39-27,785.62-11,182.04

Finding the Fourth Proportional to 20,134.39, 27,785.62 and 11,182.04

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Solution

The fourth proportional to 20,134.39, 27,785.62 and 11,182.04 is: 15,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.39 : 27,785.62 = 11,182.04 : x
  2. Step 2: Convert to fraction form
    20,134.39/27,785.62 = 11,182.04/x
  3. Step 3: Cross multiply
    20,134.39x = 27,785.62 × 11,182.04
  4. Step 4: Simplify right side
    20,134.39x = 310,699,914.26
  5. Step 5: Solve for x
    x = 310,699,914.26/20,134.39
  6. Step 6: Final answer
    x = 15,431.31

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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.