Home / 31,644.56-47,479.94-13,866.04

Finding the Fourth Proportional to 31,644.56, 47,479.94 and 13,866.04

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Solution

The fourth proportional to 31,644.56, 47,479.94 and 13,866.04 is: 20,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,644.56 : 47,479.94 = 13,866.04 : x
  2. Step 2: Convert to fraction form
    31,644.56/47,479.94 = 13,866.04/x
  3. Step 3: Cross multiply
    31,644.56x = 47,479.94 × 13,866.04
  4. Step 4: Simplify right side
    31,644.56x = 658,358,747.24
  5. Step 5: Solve for x
    x = 658,358,747.24/31,644.56
  6. Step 6: Final answer
    x = 20,804.80

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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.