Home / 20,327.50-30,491.16-7,176.70

Finding the Fourth Proportional to 20,327.50, 30,491.16 and 7,176.70

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Solution

The fourth proportional to 20,327.50, 30,491.16 and 7,176.70 is: 10,765.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.50 : 30,491.16 = 7,176.70 : x
  2. Step 2: Convert to fraction form
    20,327.50/30,491.16 = 7,176.70/x
  3. Step 3: Cross multiply
    20,327.50x = 30,491.16 × 7,176.70
  4. Step 4: Simplify right side
    20,327.50x = 218,825,907.97
  5. Step 5: Solve for x
    x = 218,825,907.97/20,327.50
  6. Step 6: Final answer
    x = 10,765.02

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1.5x scale

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.