Home / 31,694.56-47,542.52-11,982.40

Finding the Fourth Proportional to 31,694.56, 47,542.52 and 11,982.40

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Solution

The fourth proportional to 31,694.56, 47,542.52 and 11,982.40 is: 17,973.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,694.56 : 47,542.52 = 11,982.40 : x
  2. Step 2: Convert to fraction form
    31,694.56/47,542.52 = 11,982.40/x
  3. Step 3: Cross multiply
    31,694.56x = 47,542.52 × 11,982.40
  4. Step 4: Simplify right side
    31,694.56x = 569,673,491.65
  5. Step 5: Solve for x
    x = 569,673,491.65/31,694.56
  6. Step 6: Final answer
    x = 17,973.86

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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.