Home / 20,493.14-28,299.04-12,952.85

Finding the Fourth Proportional to 20,493.14, 28,299.04 and 12,952.85

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Solution

The fourth proportional to 20,493.14, 28,299.04 and 12,952.85 is: 17,886.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,493.14 : 28,299.04 = 12,952.85 : x
  2. Step 2: Convert to fraction form
    20,493.14/28,299.04 = 12,952.85/x
  3. Step 3: Cross multiply
    20,493.14x = 28,299.04 × 12,952.85
  4. Step 4: Simplify right side
    20,493.14x = 366,553,046.39
  5. Step 5: Solve for x
    x = 366,553,046.39/20,493.14
  6. Step 6: Final answer
    x = 17,886.63

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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.