Home / 31,982.20-47,976.90-9,795.40

Finding the Fourth Proportional to 31,982.20, 47,976.90 and 9,795.40

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Solution

The fourth proportional to 31,982.20, 47,976.90 and 9,795.40 is: 14,694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,982.20 : 47,976.90 = 9,795.40 : x
  2. Step 2: Convert to fraction form
    31,982.20/47,976.90 = 9,795.40/x
  3. Step 3: Cross multiply
    31,982.20x = 47,976.90 × 9,795.40
  4. Step 4: Simplify right side
    31,982.20x = 469,952,926.26
  5. Step 5: Solve for x
    x = 469,952,926.26/31,982.20
  6. Step 6: Final answer
    x = 14,694.20

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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.