Home / 20,179.71-27,847.58-11,227.02

Finding the Fourth Proportional to 20,179.71, 27,847.58 and 11,227.02

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Solution

The fourth proportional to 20,179.71, 27,847.58 and 11,227.02 is: 15,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.71 : 27,847.58 = 11,227.02 : x
  2. Step 2: Convert to fraction form
    20,179.71/27,847.58 = 11,227.02/x
  3. Step 3: Cross multiply
    20,179.71x = 27,847.58 × 11,227.02
  4. Step 4: Simplify right side
    20,179.71x = 312,645,337.61
  5. Step 5: Solve for x
    x = 312,645,337.61/20,179.71
  6. Step 6: Final answer
    x = 15,493.05

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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.