Home / 20,092.91-30,135.04-12,687.48

Finding the Fourth Proportional to 20,092.91, 30,135.04 and 12,687.48

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Solution

The fourth proportional to 20,092.91, 30,135.04 and 12,687.48 is: 19,028.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,092.91 : 30,135.04 = 12,687.48 : x
  2. Step 2: Convert to fraction form
    20,092.91/30,135.04 = 12,687.48/x
  3. Step 3: Cross multiply
    20,092.91x = 30,135.04 × 12,687.48
  4. Step 4: Simplify right side
    20,092.91x = 382,337,685.58
  5. Step 5: Solve for x
    x = 382,337,685.58/20,092.91
  6. Step 6: Final answer
    x = 19,028.49

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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.