Home / 20,154.33-27,815.23-12,196.38

Finding the Fourth Proportional to 20,154.33, 27,815.23 and 12,196.38

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Solution

The fourth proportional to 20,154.33, 27,815.23 and 12,196.38 is: 16,832.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.33 : 27,815.23 = 12,196.38 : x
  2. Step 2: Convert to fraction form
    20,154.33/27,815.23 = 12,196.38/x
  3. Step 3: Cross multiply
    20,154.33x = 27,815.23 × 12,196.38
  4. Step 4: Simplify right side
    20,154.33x = 339,245,114.87
  5. Step 5: Solve for x
    x = 339,245,114.87/20,154.33
  6. Step 6: Final answer
    x = 16,832.37

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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.