Home / 20,321.54-30,483.82-5,531.62

Finding the Fourth Proportional to 20,321.54, 30,483.82 and 5,531.62

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Solution

The fourth proportional to 20,321.54, 30,483.82 and 5,531.62 is: 8,297.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321.54 : 30,483.82 = 5,531.62 : x
  2. Step 2: Convert to fraction form
    20,321.54/30,483.82 = 5,531.62/x
  3. Step 3: Cross multiply
    20,321.54x = 30,483.82 × 5,531.62
  4. Step 4: Simplify right side
    20,321.54x = 168,624,908.39
  5. Step 5: Solve for x
    x = 168,624,908.39/20,321.54
  6. Step 6: Final answer
    x = 8,297.84

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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.