Home / 20,103.41-27,724.53-12,550.43

Finding the Fourth Proportional to 20,103.41, 27,724.53 and 12,550.43

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Solution

The fourth proportional to 20,103.41, 27,724.53 and 12,550.43 is: 17,308.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.41 : 27,724.53 = 12,550.43 : x
  2. Step 2: Convert to fraction form
    20,103.41/27,724.53 = 12,550.43/x
  3. Step 3: Cross multiply
    20,103.41x = 27,724.53 × 12,550.43
  4. Step 4: Simplify right side
    20,103.41x = 347,954,634.43
  5. Step 5: Solve for x
    x = 347,954,634.43/20,103.41
  6. Step 6: Final answer
    x = 17,308.24

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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.