Home / 20,216.75-27,899.12-11,833.25

Finding the Fourth Proportional to 20,216.75, 27,899.12 and 11,833.25

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Solution

The fourth proportional to 20,216.75, 27,899.12 and 11,833.25 is: 16,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.75 : 27,899.12 = 11,833.25 : x
  2. Step 2: Convert to fraction form
    20,216.75/27,899.12 = 11,833.25/x
  3. Step 3: Cross multiply
    20,216.75x = 27,899.12 × 11,833.25
  4. Step 4: Simplify right side
    20,216.75x = 330,137,202.57
  5. Step 5: Solve for x
    x = 330,137,202.57/20,216.75
  6. Step 6: Final answer
    x = 16,329.89

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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.