Home / 20,446.26-28,216.12-11,493.24

Finding the Fourth Proportional to 20,446.26, 28,216.12 and 11,493.24

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Solution

The fourth proportional to 20,446.26, 28,216.12 and 11,493.24 is: 15,860.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.26 : 28,216.12 = 11,493.24 : x
  2. Step 2: Convert to fraction form
    20,446.26/28,216.12 = 11,493.24/x
  3. Step 3: Cross multiply
    20,446.26x = 28,216.12 × 11,493.24
  4. Step 4: Simplify right side
    20,446.26x = 324,294,639.03
  5. Step 5: Solve for x
    x = 324,294,639.03/20,446.26
  6. Step 6: Final answer
    x = 15,860.83

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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.