Home / 31,360.62-47,035.44-12,380.16

Finding the Fourth Proportional to 31,360.62, 47,035.44 and 12,380.16

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Solution

The fourth proportional to 31,360.62, 47,035.44 and 12,380.16 is: 18,568.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,360.62 : 47,035.44 = 12,380.16 : x
  2. Step 2: Convert to fraction form
    31,360.62/47,035.44 = 12,380.16/x
  3. Step 3: Cross multiply
    31,360.62x = 47,035.44 × 12,380.16
  4. Step 4: Simplify right side
    31,360.62x = 582,306,272.87
  5. Step 5: Solve for x
    x = 582,306,272.87/31,360.62
  6. Step 6: Final answer
    x = 18,568.07

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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.