Home / 20,295.12-30,446.46-7,155.84

Finding the Fourth Proportional to 20,295.12, 30,446.46 and 7,155.84

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Solution

The fourth proportional to 20,295.12, 30,446.46 and 7,155.84 is: 10,735.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.12 : 30,446.46 = 7,155.84 : x
  2. Step 2: Convert to fraction form
    20,295.12/30,446.46 = 7,155.84/x
  3. Step 3: Cross multiply
    20,295.12x = 30,446.46 × 7,155.84
  4. Step 4: Simplify right side
    20,295.12x = 217,869,996.33
  5. Step 5: Solve for x
    x = 217,869,996.33/20,295.12
  6. Step 6: Final answer
    x = 10,735.09

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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.