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Finding the Fourth Proportional to 36,844, 55,268.88 and 12,220

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Solution

The fourth proportional to 36,844, 55,268.88 and 12,220 is: 18,330.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,844 : 55,268.88 = 12,220 : x
  2. Step 2: Convert to fraction form
    36,844/55,268.88 = 12,220/x
  3. Step 3: Cross multiply
    36,844x = 55,268.88 × 12,220
  4. Step 4: Simplify right side
    36,844x = 675,385,713.60
  5. Step 5: Solve for x
    x = 675,385,713.60/36,844
  6. Step 6: Final answer
    x = 18,330.96

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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.