Home / 20,209.15-27,892.38-11,716.76

Finding the Fourth Proportional to 20,209.15, 27,892.38 and 11,716.76

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Solution

The fourth proportional to 20,209.15, 27,892.38 and 11,716.76 is: 16,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209.15 : 27,892.38 = 11,716.76 : x
  2. Step 2: Convert to fraction form
    20,209.15/27,892.38 = 11,716.76/x
  3. Step 3: Cross multiply
    20,209.15x = 27,892.38 × 11,716.76
  4. Step 4: Simplify right side
    20,209.15x = 326,808,124.24
  5. Step 5: Solve for x
    x = 326,808,124.24/20,209.15
  6. Step 6: Final answer
    x = 16,171.29

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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.