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Finding the Fourth Proportional to 29,998.20, 44,990.10 and 9,221.88

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Solution

The fourth proportional to 29,998.20, 44,990.10 and 9,221.88 is: 13,830.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,998.20 : 44,990.10 = 9,221.88 : x
  2. Step 2: Convert to fraction form
    29,998.20/44,990.10 = 9,221.88/x
  3. Step 3: Cross multiply
    29,998.20x = 44,990.10 × 9,221.88
  4. Step 4: Simplify right side
    29,998.20x = 414,893,303.39
  5. Step 5: Solve for x
    x = 414,893,303.39/29,998.20
  6. Step 6: Final answer
    x = 13,830.61

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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.