Home / 20,414.05-28,171.26-11,461.52

Finding the Fourth Proportional to 20,414.05, 28,171.26 and 11,461.52

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Solution

The fourth proportional to 20,414.05, 28,171.26 and 11,461.52 is: 15,816.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414.05 : 28,171.26 = 11,461.52 : x
  2. Step 2: Convert to fraction form
    20,414.05/28,171.26 = 11,461.52/x
  3. Step 3: Cross multiply
    20,414.05x = 28,171.26 × 11,461.52
  4. Step 4: Simplify right side
    20,414.05x = 322,885,530.34
  5. Step 5: Solve for x
    x = 322,885,530.34/20,414.05
  6. Step 6: Final answer
    x = 15,816.83

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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.