Home / 31,685.14-47,524.06-8,313.40

Finding the Fourth Proportional to 31,685.14, 47,524.06 and 8,313.40

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Solution

The fourth proportional to 31,685.14, 47,524.06 and 8,313.40 is: 12,469.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,685.14 : 47,524.06 = 8,313.40 : x
  2. Step 2: Convert to fraction form
    31,685.14/47,524.06 = 8,313.40/x
  3. Step 3: Cross multiply
    31,685.14x = 47,524.06 × 8,313.40
  4. Step 4: Simplify right side
    31,685.14x = 395,086,241.22
  5. Step 5: Solve for x
    x = 395,086,241.22/31,685.14
  6. Step 6: Final answer
    x = 12,469.14

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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.