Home / 20,279.07-27,982.62-11,326.26

Finding the Fourth Proportional to 20,279.07, 27,982.62 and 11,326.26

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Solution

The fourth proportional to 20,279.07, 27,982.62 and 11,326.26 is: 15,628.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.07 : 27,982.62 = 11,326.26 : x
  2. Step 2: Convert to fraction form
    20,279.07/27,982.62 = 11,326.26/x
  3. Step 3: Cross multiply
    20,279.07x = 27,982.62 × 11,326.26
  4. Step 4: Simplify right side
    20,279.07x = 316,938,429.60
  5. Step 5: Solve for x
    x = 316,938,429.60/20,279.07
  6. Step 6: Final answer
    x = 15,628.84

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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.