Home / 31,525.22-47,289.45-8,151.86

Finding the Fourth Proportional to 31,525.22, 47,289.45 and 8,151.86

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Solution

The fourth proportional to 31,525.22, 47,289.45 and 8,151.86 is: 12,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,525.22 : 47,289.45 = 8,151.86 : x
  2. Step 2: Convert to fraction form
    31,525.22/47,289.45 = 8,151.86/x
  3. Step 3: Cross multiply
    31,525.22x = 47,289.45 × 8,151.86
  4. Step 4: Simplify right side
    31,525.22x = 385,496,975.88
  5. Step 5: Solve for x
    x = 385,496,975.88/31,525.22
  6. Step 6: Final answer
    x = 12,228.21

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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.