Home / 20,794.52-28,729.01-19,770.38

Finding the Fourth Proportional to 20,794.52, 28,729.01 and 19,770.38

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Solution

The fourth proportional to 20,794.52, 28,729.01 and 19,770.38 is: 27,314.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.52 : 28,729.01 = 19,770.38 : x
  2. Step 2: Convert to fraction form
    20,794.52/28,729.01 = 19,770.38/x
  3. Step 3: Cross multiply
    20,794.52x = 28,729.01 × 19,770.38
  4. Step 4: Simplify right side
    20,794.52x = 567,983,458.24
  5. Step 5: Solve for x
    x = 567,983,458.24/20,794.52
  6. Step 6: Final answer
    x = 27,314.09

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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.