Home / 20,211.12-27,886.68-11,826

Finding the Fourth Proportional to 20,211.12, 27,886.68 and 11,826

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Solution

The fourth proportional to 20,211.12, 27,886.68 and 11,826 is: 16,317.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.12 : 27,886.68 = 11,826 : x
  2. Step 2: Convert to fraction form
    20,211.12/27,886.68 = 11,826/x
  3. Step 3: Cross multiply
    20,211.12x = 27,886.68 × 11,826
  4. Step 4: Simplify right side
    20,211.12x = 329,787,877.68
  5. Step 5: Solve for x
    x = 329,787,877.68/20,211.12
  6. Step 6: Final answer
    x = 16,317.15

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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.