Home / 31,914.72-47,872-15,224.16

Finding the Fourth Proportional to 31,914.72, 47,872 and 15,224.16

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Solution

The fourth proportional to 31,914.72, 47,872 and 15,224.16 is: 22,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,914.72 : 47,872 = 15,224.16 : x
  2. Step 2: Convert to fraction form
    31,914.72/47,872 = 15,224.16/x
  3. Step 3: Cross multiply
    31,914.72x = 47,872 × 15,224.16
  4. Step 4: Simplify right side
    31,914.72x = 728,810,987.52
  5. Step 5: Solve for x
    x = 728,810,987.52/31,914.72
  6. Step 6: Final answer
    x = 22,836.20

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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.