Home / 20,171.73-27,839.52-12,214.02

Finding the Fourth Proportional to 20,171.73, 27,839.52 and 12,214.02

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Solution

The fourth proportional to 20,171.73, 27,839.52 and 12,214.02 is: 16,856.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.73 : 27,839.52 = 12,214.02 : x
  2. Step 2: Convert to fraction form
    20,171.73/27,839.52 = 12,214.02/x
  3. Step 3: Cross multiply
    20,171.73x = 27,839.52 × 12,214.02
  4. Step 4: Simplify right side
    20,171.73x = 340,032,454.07
  5. Step 5: Solve for x
    x = 340,032,454.07/20,171.73
  6. Step 6: Final answer
    x = 16,856.88

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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.