Home / 31,850.66-47,796.80-12,129.41

Finding the Fourth Proportional to 31,850.66, 47,796.80 and 12,129.41

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Solution

The fourth proportional to 31,850.66, 47,796.80 and 12,129.41 is: 18,202.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,850.66 : 47,796.80 = 12,129.41 : x
  2. Step 2: Convert to fraction form
    31,850.66/47,796.80 = 12,129.41/x
  3. Step 3: Cross multiply
    31,850.66x = 47,796.80 × 12,129.41
  4. Step 4: Simplify right side
    31,850.66x = 579,746,684.26
  5. Step 5: Solve for x
    x = 579,746,684.26/31,850.66
  6. Step 6: Final answer
    x = 18,202.03

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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.