Home / 31,751.08-47,622.96-8,379.34

Finding the Fourth Proportional to 31,751.08, 47,622.96 and 8,379.34

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Solution

The fourth proportional to 31,751.08, 47,622.96 and 8,379.34 is: 12,568.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,751.08 : 47,622.96 = 8,379.34 : x
  2. Step 2: Convert to fraction form
    31,751.08/47,622.96 = 8,379.34/x
  3. Step 3: Cross multiply
    31,751.08x = 47,622.96 × 8,379.34
  4. Step 4: Simplify right side
    31,751.08x = 399,048,735.53
  5. Step 5: Solve for x
    x = 399,048,735.53/31,751.08
  6. Step 6: Final answer
    x = 12,568.04

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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.