Home / 20,208.53-27,891.06-12,251.90

Finding the Fourth Proportional to 20,208.53, 27,891.06 and 12,251.90

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Solution

The fourth proportional to 20,208.53, 27,891.06 and 12,251.90 is: 16,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.53 : 27,891.06 = 12,251.90 : x
  2. Step 2: Convert to fraction form
    20,208.53/27,891.06 = 12,251.90/x
  3. Step 3: Cross multiply
    20,208.53x = 27,891.06 × 12,251.90
  4. Step 4: Simplify right side
    20,208.53x = 341,718,478.01
  5. Step 5: Solve for x
    x = 341,718,478.01/20,208.53
  6. Step 6: Final answer
    x = 16,909.62

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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.