Home / 20,150.10-27,805.77-11,196.90

Finding the Fourth Proportional to 20,150.10, 27,805.77 and 11,196.90

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Solution

The fourth proportional to 20,150.10, 27,805.77 and 11,196.90 is: 15,450.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.10 : 27,805.77 = 11,196.90 : x
  2. Step 2: Convert to fraction form
    20,150.10/27,805.77 = 11,196.90/x
  3. Step 3: Cross multiply
    20,150.10x = 27,805.77 × 11,196.90
  4. Step 4: Simplify right side
    20,150.10x = 311,338,426.11
  5. Step 5: Solve for x
    x = 311,338,426.11/20,150.10
  6. Step 6: Final answer
    x = 15,450.96

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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.