Home / 20,450.88-30,677.94-5,458.05

Finding the Fourth Proportional to 20,450.88, 30,677.94 and 5,458.05

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Solution

The fourth proportional to 20,450.88, 30,677.94 and 5,458.05 is: 8,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.88 : 30,677.94 = 5,458.05 : x
  2. Step 2: Convert to fraction form
    20,450.88/30,677.94 = 5,458.05/x
  3. Step 3: Cross multiply
    20,450.88x = 30,677.94 × 5,458.05
  4. Step 4: Simplify right side
    20,450.88x = 167,441,730.42
  5. Step 5: Solve for x
    x = 167,441,730.42/20,450.88
  6. Step 6: Final answer
    x = 8,187.51

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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.