Home / 20,323.39-28,046.27-11,372.99

Finding the Fourth Proportional to 20,323.39, 28,046.27 and 11,372.99

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Solution

The fourth proportional to 20,323.39, 28,046.27 and 11,372.99 is: 15,694.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.39 : 28,046.27 = 11,372.99 : x
  2. Step 2: Convert to fraction form
    20,323.39/28,046.27 = 11,372.99/x
  3. Step 3: Cross multiply
    20,323.39x = 28,046.27 × 11,372.99
  4. Step 4: Simplify right side
    20,323.39x = 318,970,046.80
  5. Step 5: Solve for x
    x = 318,970,046.80/20,323.39
  6. Step 6: Final answer
    x = 15,694.73

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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.