Home / 20,017.89-27,628.20-11,951.82

Finding the Fourth Proportional to 20,017.89, 27,628.20 and 11,951.82

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Solution

The fourth proportional to 20,017.89, 27,628.20 and 11,951.82 is: 16,495.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.89 : 27,628.20 = 11,951.82 : x
  2. Step 2: Convert to fraction form
    20,017.89/27,628.20 = 11,951.82/x
  3. Step 3: Cross multiply
    20,017.89x = 27,628.20 × 11,951.82
  4. Step 4: Simplify right side
    20,017.89x = 330,207,273.32
  5. Step 5: Solve for x
    x = 330,207,273.32/20,017.89
  6. Step 6: Final answer
    x = 16,495.61

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1.5x scale

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.