Home / 20,951.94-31,427.90-14,739.75

Finding the Fourth Proportional to 20,951.94, 31,427.90 and 14,739.75

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Solution

The fourth proportional to 20,951.94, 31,427.90 and 14,739.75 is: 22,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951.94 : 31,427.90 = 14,739.75 : x
  2. Step 2: Convert to fraction form
    20,951.94/31,427.90 = 14,739.75/x
  3. Step 3: Cross multiply
    20,951.94x = 31,427.90 × 14,739.75
  4. Step 4: Simplify right side
    20,951.94x = 463,239,315.33
  5. Step 5: Solve for x
    x = 463,239,315.33/20,951.94
  6. Step 6: Final answer
    x = 22,109.61

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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.