Home / 31,688.43-47,530.16-8,314.26

Finding the Fourth Proportional to 31,688.43, 47,530.16 and 8,314.26

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Solution

The fourth proportional to 31,688.43, 47,530.16 and 8,314.26 is: 12,470.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.43 : 47,530.16 = 8,314.26 : x
  2. Step 2: Convert to fraction form
    31,688.43/47,530.16 = 8,314.26/x
  3. Step 3: Cross multiply
    31,688.43x = 47,530.16 × 8,314.26
  4. Step 4: Simplify right side
    31,688.43x = 395,177,891.22
  5. Step 5: Solve for x
    x = 395,177,891.22/31,688.43
  6. Step 6: Final answer
    x = 12,470.73

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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.