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Finding the Fourth Proportional to 30,450.88, 45,673.20 and 8,266.50

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Solution

The fourth proportional to 30,450.88, 45,673.20 and 8,266.50 is: 12,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,450.88 : 45,673.20 = 8,266.50 : x
  2. Step 2: Convert to fraction form
    30,450.88/45,673.20 = 8,266.50/x
  3. Step 3: Cross multiply
    30,450.88x = 45,673.20 × 8,266.50
  4. Step 4: Simplify right side
    30,450.88x = 377,557,507.80
  5. Step 5: Solve for x
    x = 377,557,507.80/30,450.88
  6. Step 6: Final answer
    x = 12,398.90

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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.