Home / 36,705.45-55,076.40-20,922.60

Finding the Fourth Proportional to 36,705.45, 55,076.40 and 20,922.60

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Solution

The fourth proportional to 36,705.45, 55,076.40 and 20,922.60 is: 31,394.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,705.45 : 55,076.40 = 20,922.60 : x
  2. Step 2: Convert to fraction form
    36,705.45/55,076.40 = 20,922.60/x
  3. Step 3: Cross multiply
    36,705.45x = 55,076.40 × 20,922.60
  4. Step 4: Simplify right side
    36,705.45x = 1,152,341,486.64
  5. Step 5: Solve for x
    x = 1,152,341,486.64/36,705.45
  6. Step 6: Final answer
    x = 31,394.29

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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.