Home / 36,821.20-55,231.80-14,627.20

Finding the Fourth Proportional to 36,821.20, 55,231.80 and 14,627.20

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Solution

The fourth proportional to 36,821.20, 55,231.80 and 14,627.20 is: 21,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,821.20 : 55,231.80 = 14,627.20 : x
  2. Step 2: Convert to fraction form
    36,821.20/55,231.80 = 14,627.20/x
  3. Step 3: Cross multiply
    36,821.20x = 55,231.80 × 14,627.20
  4. Step 4: Simplify right side
    36,821.20x = 807,886,584.96
  5. Step 5: Solve for x
    x = 807,886,584.96/36,821.20
  6. Step 6: Final answer
    x = 21,940.80

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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.