Home / 20,279.33-27,984.61-11,664.85

Finding the Fourth Proportional to 20,279.33, 27,984.61 and 11,664.85

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Solution

The fourth proportional to 20,279.33, 27,984.61 and 11,664.85 is: 16,097.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.33 : 27,984.61 = 11,664.85 : x
  2. Step 2: Convert to fraction form
    20,279.33/27,984.61 = 11,664.85/x
  3. Step 3: Cross multiply
    20,279.33x = 27,984.61 × 11,664.85
  4. Step 4: Simplify right side
    20,279.33x = 326,436,353.32
  5. Step 5: Solve for x
    x = 326,436,353.32/20,279.33
  6. Step 6: Final answer
    x = 16,097.00

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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.