Home / 20,450.47-30,676.38-5,658.15

Finding the Fourth Proportional to 20,450.47, 30,676.38 and 5,658.15

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Solution

The fourth proportional to 20,450.47, 30,676.38 and 5,658.15 is: 8,487.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.47 : 30,676.38 = 5,658.15 : x
  2. Step 2: Convert to fraction form
    20,450.47/30,676.38 = 5,658.15/x
  3. Step 3: Cross multiply
    20,450.47x = 30,676.38 × 5,658.15
  4. Step 4: Simplify right side
    20,450.47x = 173,571,406.12
  5. Step 5: Solve for x
    x = 173,571,406.12/20,450.47
  6. Step 6: Final answer
    x = 8,487.41

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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.