Home / 20,515.53-30,778.48-5,724.44

Finding the Fourth Proportional to 20,515.53, 30,778.48 and 5,724.44

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Solution

The fourth proportional to 20,515.53, 30,778.48 and 5,724.44 is: 8,588.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515.53 : 30,778.48 = 5,724.44 : x
  2. Step 2: Convert to fraction form
    20,515.53/30,778.48 = 5,724.44/x
  3. Step 3: Cross multiply
    20,515.53x = 30,778.48 × 5,724.44
  4. Step 4: Simplify right side
    20,515.53x = 176,189,562.05
  5. Step 5: Solve for x
    x = 176,189,562.05/20,515.53
  6. Step 6: Final answer
    x = 8,588.11

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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.