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Finding the Fourth Proportional to 47,685, 71,504.34 and 14,398.68

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Solution

The fourth proportional to 47,685, 71,504.34 and 14,398.68 is: 21,591.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,685 : 71,504.34 = 14,398.68 : x
  2. Step 2: Convert to fraction form
    47,685/71,504.34 = 14,398.68/x
  3. Step 3: Cross multiply
    47,685x = 71,504.34 × 14,398.68
  4. Step 4: Simplify right side
    47,685x = 1,029,568,110.27
  5. Step 5: Solve for x
    x = 1,029,568,110.27/47,685
  6. Step 6: Final answer
    x = 21,591.03

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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.