Home / 20,764.14-28,654.38-11,811.66

Finding the Fourth Proportional to 20,764.14, 28,654.38 and 11,811.66

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Solution

The fourth proportional to 20,764.14, 28,654.38 and 11,811.66 is: 16,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764.14 : 28,654.38 = 11,811.66 : x
  2. Step 2: Convert to fraction form
    20,764.14/28,654.38 = 11,811.66/x
  3. Step 3: Cross multiply
    20,764.14x = 28,654.38 × 11,811.66
  4. Step 4: Simplify right side
    20,764.14x = 338,455,794.07
  5. Step 5: Solve for x
    x = 338,455,794.07/20,764.14
  6. Step 6: Final answer
    x = 16,300.02

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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.