Home / 29,120.58-43,680.52-20,536.68

Finding the Fourth Proportional to 29,120.58, 43,680.52 and 20,536.68

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Solution

The fourth proportional to 29,120.58, 43,680.52 and 20,536.68 is: 30,804.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,120.58 : 43,680.52 = 20,536.68 : x
  2. Step 2: Convert to fraction form
    29,120.58/43,680.52 = 20,536.68/x
  3. Step 3: Cross multiply
    29,120.58x = 43,680.52 × 20,536.68
  4. Step 4: Simplify right side
    29,120.58x = 897,052,861.47
  5. Step 5: Solve for x
    x = 897,052,861.47/29,120.58
  6. Step 6: Final answer
    x = 30,804.77

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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.