Home / 20,152.74-30,228.60-5,361.79

Finding the Fourth Proportional to 20,152.74, 30,228.60 and 5,361.79

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Solution

The fourth proportional to 20,152.74, 30,228.60 and 5,361.79 is: 8,042.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.74 : 30,228.60 = 5,361.79 : x
  2. Step 2: Convert to fraction form
    20,152.74/30,228.60 = 5,361.79/x
  3. Step 3: Cross multiply
    20,152.74x = 30,228.60 × 5,361.79
  4. Step 4: Simplify right side
    20,152.74x = 162,079,329.62
  5. Step 5: Solve for x
    x = 162,079,329.62/20,152.74
  6. Step 6: Final answer
    x = 8,042.54

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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.