Home / 18,891.06-28,281.84-14,230.68

Finding the Fourth Proportional to 18,891.06, 28,281.84 and 14,230.68

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Solution

The fourth proportional to 18,891.06, 28,281.84 and 14,230.68 is: 21,304.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.06 : 28,281.84 = 14,230.68 : x
  2. Step 2: Convert to fraction form
    18,891.06/28,281.84 = 14,230.68/x
  3. Step 3: Cross multiply
    18,891.06x = 28,281.84 × 14,230.68
  4. Step 4: Simplify right side
    18,891.06x = 402,469,814.85
  5. Step 5: Solve for x
    x = 402,469,814.85/18,891.06
  6. Step 6: Final answer
    x = 21,304.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.