Home / 31,693.95-47,540.79-12,982.68

Finding the Fourth Proportional to 31,693.95, 47,540.79 and 12,982.68

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Solution

The fourth proportional to 31,693.95, 47,540.79 and 12,982.68 is: 19,473.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,693.95 : 47,540.79 = 12,982.68 : x
  2. Step 2: Convert to fraction form
    31,693.95/47,540.79 = 12,982.68/x
  3. Step 3: Cross multiply
    31,693.95x = 47,540.79 × 12,982.68
  4. Step 4: Simplify right side
    31,693.95x = 617,206,863.52
  5. Step 5: Solve for x
    x = 617,206,863.52/31,693.95
  6. Step 6: Final answer
    x = 19,473.96

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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.