Home / 20,132-30,206.53-10,769.57

Finding the Fourth Proportional to 20,132, 30,206.53 and 10,769.57

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Solution

The fourth proportional to 20,132, 30,206.53 and 10,769.57 is: 16,158.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132 : 30,206.53 = 10,769.57 : x
  2. Step 2: Convert to fraction form
    20,132/30,206.53 = 10,769.57/x
  3. Step 3: Cross multiply
    20,132x = 30,206.53 × 10,769.57
  4. Step 4: Simplify right side
    20,132x = 325,311,188.26
  5. Step 5: Solve for x
    x = 325,311,188.26/20,132
  6. Step 6: Final answer
    x = 16,158.91

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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.