Home / 31,821.66-47,732.49-12,095.60

Finding the Fourth Proportional to 31,821.66, 47,732.49 and 12,095.60

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Solution

The fourth proportional to 31,821.66, 47,732.49 and 12,095.60 is: 18,143.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,821.66 : 47,732.49 = 12,095.60 : x
  2. Step 2: Convert to fraction form
    31,821.66/47,732.49 = 12,095.60/x
  3. Step 3: Cross multiply
    31,821.66x = 47,732.49 × 12,095.60
  4. Step 4: Simplify right side
    31,821.66x = 577,352,867.38
  5. Step 5: Solve for x
    x = 577,352,867.38/31,821.66
  6. Step 6: Final answer
    x = 18,143.39

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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.