Home / 20,749.73-31,097.21-7,589.43

Finding the Fourth Proportional to 20,749.73, 31,097.21 and 7,589.43

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Solution

The fourth proportional to 20,749.73, 31,097.21 and 7,589.43 is: 11,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.73 : 31,097.21 = 7,589.43 : x
  2. Step 2: Convert to fraction form
    20,749.73/31,097.21 = 7,589.43/x
  3. Step 3: Cross multiply
    20,749.73x = 31,097.21 × 7,589.43
  4. Step 4: Simplify right side
    20,749.73x = 236,010,060.54
  5. Step 5: Solve for x
    x = 236,010,060.54/20,749.73
  6. Step 6: Final answer
    x = 11,374.13

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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.