Home / 20,133.72-30,204.11-7,654.83

Finding the Fourth Proportional to 20,133.72, 30,204.11 and 7,654.83

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Solution

The fourth proportional to 20,133.72, 30,204.11 and 7,654.83 is: 11,483.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.72 : 30,204.11 = 7,654.83 : x
  2. Step 2: Convert to fraction form
    20,133.72/30,204.11 = 7,654.83/x
  3. Step 3: Cross multiply
    20,133.72x = 30,204.11 × 7,654.83
  4. Step 4: Simplify right side
    20,133.72x = 231,207,138.06
  5. Step 5: Solve for x
    x = 231,207,138.06/20,133.72
  6. Step 6: Final answer
    x = 11,483.58

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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.