Home / 20,793.09-31,201.99-7,654.69

Finding the Fourth Proportional to 20,793.09, 31,201.99 and 7,654.69

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Solution

The fourth proportional to 20,793.09, 31,201.99 and 7,654.69 is: 11,486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.09 : 31,201.99 = 7,654.69 : x
  2. Step 2: Convert to fraction form
    20,793.09/31,201.99 = 7,654.69/x
  3. Step 3: Cross multiply
    20,793.09x = 31,201.99 × 7,654.69
  4. Step 4: Simplify right side
    20,793.09x = 238,841,560.83
  5. Step 5: Solve for x
    x = 238,841,560.83/20,793.09
  6. Step 6: Final answer
    x = 11,486.58

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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.