Home / 20,929.97-31,396.58-5,936.84

Finding the Fourth Proportional to 20,929.97, 31,396.58 and 5,936.84

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Solution

The fourth proportional to 20,929.97, 31,396.58 and 5,936.84 is: 8,905.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.97 : 31,396.58 = 5,936.84 : x
  2. Step 2: Convert to fraction form
    20,929.97/31,396.58 = 5,936.84/x
  3. Step 3: Cross multiply
    20,929.97x = 31,396.58 × 5,936.84
  4. Step 4: Simplify right side
    20,929.97x = 186,396,285.34
  5. Step 5: Solve for x
    x = 186,396,285.34/20,929.97
  6. Step 6: Final answer
    x = 8,905.71

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1.5x scale

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.