Home / 31,400.72-47,101.04-8,027.16

Finding the Fourth Proportional to 31,400.72, 47,101.04 and 8,027.16

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Solution

The fourth proportional to 31,400.72, 47,101.04 and 8,027.16 is: 12,040.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,400.72 : 47,101.04 = 8,027.16 : x
  2. Step 2: Convert to fraction form
    31,400.72/47,101.04 = 8,027.16/x
  3. Step 3: Cross multiply
    31,400.72x = 47,101.04 × 8,027.16
  4. Step 4: Simplify right side
    31,400.72x = 378,087,584.25
  5. Step 5: Solve for x
    x = 378,087,584.25/31,400.72
  6. Step 6: Final answer
    x = 12,040.73

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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.