Home / 20,550.78-30,826.04-4,968.41

Finding the Fourth Proportional to 20,550.78, 30,826.04 and 4,968.41

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Solution

The fourth proportional to 20,550.78, 30,826.04 and 4,968.41 is: 7,452.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550.78 : 30,826.04 = 4,968.41 : x
  2. Step 2: Convert to fraction form
    20,550.78/30,826.04 = 4,968.41/x
  3. Step 3: Cross multiply
    20,550.78x = 30,826.04 × 4,968.41
  4. Step 4: Simplify right side
    20,550.78x = 153,156,226.42
  5. Step 5: Solve for x
    x = 153,156,226.42/20,550.78
  6. Step 6: Final answer
    x = 7,452.57

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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.