Home / 45,933.12-68,906.90-19,638

Finding the Fourth Proportional to 45,933.12, 68,906.90 and 19,638

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Solution

The fourth proportional to 45,933.12, 68,906.90 and 19,638 is: 29,460.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,933.12 : 68,906.90 = 19,638 : x
  2. Step 2: Convert to fraction form
    45,933.12/68,906.90 = 19,638/x
  3. Step 3: Cross multiply
    45,933.12x = 68,906.90 × 19,638
  4. Step 4: Simplify right side
    45,933.12x = 1,353,193,702.20
  5. Step 5: Solve for x
    x = 1,353,193,702.20/45,933.12
  6. Step 6: Final answer
    x = 29,460.09

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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.