Home / 36,519.64-54,785.52-12,821.04

Finding the Fourth Proportional to 36,519.64, 54,785.52 and 12,821.04

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Solution

The fourth proportional to 36,519.64, 54,785.52 and 12,821.04 is: 19,233.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,519.64 : 54,785.52 = 12,821.04 : x
  2. Step 2: Convert to fraction form
    36,519.64/54,785.52 = 12,821.04/x
  3. Step 3: Cross multiply
    36,519.64x = 54,785.52 × 12,821.04
  4. Step 4: Simplify right side
    36,519.64x = 702,407,069.41
  5. Step 5: Solve for x
    x = 702,407,069.41/36,519.64
  6. Step 6: Final answer
    x = 19,233.68

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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.