Home / 20,965.63-31,441.79-6,923.04

Finding the Fourth Proportional to 20,965.63, 31,441.79 and 6,923.04

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Solution

The fourth proportional to 20,965.63, 31,441.79 and 6,923.04 is: 10,382.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,965.63 : 31,441.79 = 6,923.04 : x
  2. Step 2: Convert to fraction form
    20,965.63/31,441.79 = 6,923.04/x
  3. Step 3: Cross multiply
    20,965.63x = 31,441.79 × 6,923.04
  4. Step 4: Simplify right side
    20,965.63x = 217,672,813.83
  5. Step 5: Solve for x
    x = 217,672,813.83/20,965.63
  6. Step 6: Final answer
    x = 10,382.36

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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.