Home / 20,764.35-28,654.88-11,333.07

Finding the Fourth Proportional to 20,764.35, 28,654.88 and 11,333.07

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Solution

The fourth proportional to 20,764.35, 28,654.88 and 11,333.07 is: 15,639.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764.35 : 28,654.88 = 11,333.07 : x
  2. Step 2: Convert to fraction form
    20,764.35/28,654.88 = 11,333.07/x
  3. Step 3: Cross multiply
    20,764.35x = 28,654.88 × 11,333.07
  4. Step 4: Simplify right side
    20,764.35x = 324,747,704.22
  5. Step 5: Solve for x
    x = 324,747,704.22/20,764.35
  6. Step 6: Final answer
    x = 15,639.68

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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.