Home / 20,132.88-30,194.73-7,654.29

Finding the Fourth Proportional to 20,132.88, 30,194.73 and 7,654.29

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Solution

The fourth proportional to 20,132.88, 30,194.73 and 7,654.29 is: 11,479.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.88 : 30,194.73 = 7,654.29 : x
  2. Step 2: Convert to fraction form
    20,132.88/30,194.73 = 7,654.29/x
  3. Step 3: Cross multiply
    20,132.88x = 30,194.73 × 7,654.29
  4. Step 4: Simplify right side
    20,132.88x = 231,119,219.89
  5. Step 5: Solve for x
    x = 231,119,219.89/20,132.88
  6. Step 6: Final answer
    x = 11,479.69

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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.