Home / 20,192.14-30,286.48-12,292.61

Finding the Fourth Proportional to 20,192.14, 30,286.48 and 12,292.61

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Solution

The fourth proportional to 20,192.14, 30,286.48 and 12,292.61 is: 18,437.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.14 : 30,286.48 = 12,292.61 : x
  2. Step 2: Convert to fraction form
    20,192.14/30,286.48 = 12,292.61/x
  3. Step 3: Cross multiply
    20,192.14x = 30,286.48 × 12,292.61
  4. Step 4: Simplify right side
    20,192.14x = 372,299,674.02
  5. Step 5: Solve for x
    x = 372,299,674.02/20,192.14
  6. Step 6: Final answer
    x = 18,437.85

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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.