Home / 20,103.11-27,724.15-12,550.14

Finding the Fourth Proportional to 20,103.11, 27,724.15 and 12,550.14

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Solution

The fourth proportional to 20,103.11, 27,724.15 and 12,550.14 is: 17,307.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.11 : 27,724.15 = 12,550.14 : x
  2. Step 2: Convert to fraction form
    20,103.11/27,724.15 = 12,550.14/x
  3. Step 3: Cross multiply
    20,103.11x = 27,724.15 × 12,550.14
  4. Step 4: Simplify right side
    20,103.11x = 347,941,932.51
  5. Step 5: Solve for x
    x = 347,941,932.51/20,103.11
  6. Step 6: Final answer
    x = 17,307.86

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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.