Home / 34,629.36-47,788.80-20,286

Finding the Fourth Proportional to 34,629.36, 47,788.80 and 20,286

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Solution

The fourth proportional to 34,629.36, 47,788.80 and 20,286 is: 27,994.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,629.36 : 47,788.80 = 20,286 : x
  2. Step 2: Convert to fraction form
    34,629.36/47,788.80 = 20,286/x
  3. Step 3: Cross multiply
    34,629.36x = 47,788.80 × 20,286
  4. Step 4: Simplify right side
    34,629.36x = 969,443,596.80
  5. Step 5: Solve for x
    x = 969,443,596.80/34,629.36
  6. Step 6: Final answer
    x = 27,994.85

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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.