Home / 34,481.40-47,564.28-21,729.60

Finding the Fourth Proportional to 34,481.40, 47,564.28 and 21,729.60

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Solution

The fourth proportional to 34,481.40, 47,564.28 and 21,729.60 is: 29,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,481.40 : 47,564.28 = 21,729.60 : x
  2. Step 2: Convert to fraction form
    34,481.40/47,564.28 = 21,729.60/x
  3. Step 3: Cross multiply
    34,481.40x = 47,564.28 × 21,729.60
  4. Step 4: Simplify right side
    34,481.40x = 1,033,552,778.69
  5. Step 5: Solve for x
    x = 1,033,552,778.69/34,481.40
  6. Step 6: Final answer
    x = 29,974.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.