Home / 31,629.12-47,451.90-16,825.86

Finding the Fourth Proportional to 31,629.12, 47,451.90 and 16,825.86

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Solution

The fourth proportional to 31,629.12, 47,451.90 and 16,825.86 is: 25,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,629.12 : 47,451.90 = 16,825.86 : x
  2. Step 2: Convert to fraction form
    31,629.12/47,451.90 = 16,825.86/x
  3. Step 3: Cross multiply
    31,629.12x = 47,451.90 × 16,825.86
  4. Step 4: Simplify right side
    31,629.12x = 798,419,026.13
  5. Step 5: Solve for x
    x = 798,419,026.13/31,629.12
  6. Step 6: Final answer
    x = 25,243.16

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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.