Home / 20,960.06-31,433.42-6,917.47

Finding the Fourth Proportional to 20,960.06, 31,433.42 and 6,917.47

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Solution

The fourth proportional to 20,960.06, 31,433.42 and 6,917.47 is: 10,374.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.06 : 31,433.42 = 6,917.47 : x
  2. Step 2: Convert to fraction form
    20,960.06/31,433.42 = 6,917.47/x
  3. Step 3: Cross multiply
    20,960.06x = 31,433.42 × 6,917.47
  4. Step 4: Simplify right side
    20,960.06x = 217,439,739.85
  5. Step 5: Solve for x
    x = 217,439,739.85/20,960.06
  6. Step 6: Final answer
    x = 10,374.00

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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.