Home / 20,722.37-28,595.97-11,769.84

Finding the Fourth Proportional to 20,722.37, 28,595.97 and 11,769.84

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Solution

The fourth proportional to 20,722.37, 28,595.97 and 11,769.84 is: 16,241.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.37 : 28,595.97 = 11,769.84 : x
  2. Step 2: Convert to fraction form
    20,722.37/28,595.97 = 11,769.84/x
  3. Step 3: Cross multiply
    20,722.37x = 28,595.97 × 11,769.84
  4. Step 4: Simplify right side
    20,722.37x = 336,569,991.54
  5. Step 5: Solve for x
    x = 336,569,991.54/20,722.37
  6. Step 6: Final answer
    x = 16,241.87

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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.