Home / 20,414.94-28,171.71-11,462.28

Finding the Fourth Proportional to 20,414.94, 28,171.71 and 11,462.28

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Solution

The fourth proportional to 20,414.94, 28,171.71 and 11,462.28 is: 15,817.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414.94 : 28,171.71 = 11,462.28 : x
  2. Step 2: Convert to fraction form
    20,414.94/28,171.71 = 11,462.28/x
  3. Step 3: Cross multiply
    20,414.94x = 28,171.71 × 11,462.28
  4. Step 4: Simplify right side
    20,414.94x = 322,912,028.10
  5. Step 5: Solve for x
    x = 322,912,028.10/20,414.94
  6. Step 6: Final answer
    x = 15,817.44

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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.