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Finding the Fourth Proportional to 29,998.20, 44,961.30 and 20,638.20

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Solution

The fourth proportional to 29,998.20, 44,961.30 and 20,638.20 is: 30,932.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,998.20 : 44,961.30 = 20,638.20 : x
  2. Step 2: Convert to fraction form
    29,998.20/44,961.30 = 20,638.20/x
  3. Step 3: Cross multiply
    29,998.20x = 44,961.30 × 20,638.20
  4. Step 4: Simplify right side
    29,998.20x = 927,920,301.66
  5. Step 5: Solve for x
    x = 927,920,301.66/29,998.20
  6. Step 6: Final answer
    x = 30,932.53

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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.