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Finding the Fourth Proportional to 36,999.90, 55,524.15 and 21,204.90

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Solution

The fourth proportional to 36,999.90, 55,524.15 and 21,204.90 is: 31,821.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,999.90 : 55,524.15 = 21,204.90 : x
  2. Step 2: Convert to fraction form
    36,999.90/55,524.15 = 21,204.90/x
  3. Step 3: Cross multiply
    36,999.90x = 55,524.15 × 21,204.90
  4. Step 4: Simplify right side
    36,999.90x = 1,177,384,048.34
  5. Step 5: Solve for x
    x = 1,177,384,048.34/36,999.90
  6. Step 6: Final answer
    x = 31,821.28

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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.