Home / 20,169.54-27,836.33-11,217.96

Finding the Fourth Proportional to 20,169.54, 27,836.33 and 11,217.96

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Solution

The fourth proportional to 20,169.54, 27,836.33 and 11,217.96 is: 15,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.54 : 27,836.33 = 11,217.96 : x
  2. Step 2: Convert to fraction form
    20,169.54/27,836.33 = 11,217.96/x
  3. Step 3: Cross multiply
    20,169.54x = 27,836.33 × 11,217.96
  4. Step 4: Simplify right side
    20,169.54x = 312,266,780.40
  5. Step 5: Solve for x
    x = 312,266,780.40/20,169.54
  6. Step 6: Final answer
    x = 15,482.10

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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.