Home / 31,975.22-47,967.21-10,909.61

Finding the Fourth Proportional to 31,975.22, 47,967.21 and 10,909.61

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Solution

The fourth proportional to 31,975.22, 47,967.21 and 10,909.61 is: 16,365.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,975.22 : 47,967.21 = 10,909.61 : x
  2. Step 2: Convert to fraction form
    31,975.22/47,967.21 = 10,909.61/x
  3. Step 3: Cross multiply
    31,975.22x = 47,967.21 × 10,909.61
  4. Step 4: Simplify right side
    31,975.22x = 523,303,553.89
  5. Step 5: Solve for x
    x = 523,303,553.89/31,975.22
  6. Step 6: Final answer
    x = 16,365.91

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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.