Home / 20,084.82-30,147.45-17,760.12

Finding the Fourth Proportional to 20,084.82, 30,147.45 and 17,760.12

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Solution

The fourth proportional to 20,084.82, 30,147.45 and 17,760.12 is: 26,658.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.82 : 30,147.45 = 17,760.12 : x
  2. Step 2: Convert to fraction form
    20,084.82/30,147.45 = 17,760.12/x
  3. Step 3: Cross multiply
    20,084.82x = 30,147.45 × 17,760.12
  4. Step 4: Simplify right side
    20,084.82x = 535,422,329.69
  5. Step 5: Solve for x
    x = 535,422,329.69/20,084.82
  6. Step 6: Final answer
    x = 26,658.06

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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.