Home / 43,811.04-65,755.60-20,450.72

Finding the Fourth Proportional to 43,811.04, 65,755.60 and 20,450.72

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Solution

The fourth proportional to 43,811.04, 65,755.60 and 20,450.72 is: 30,694.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,811.04 : 65,755.60 = 20,450.72 : x
  2. Step 2: Convert to fraction form
    43,811.04/65,755.60 = 20,450.72/x
  3. Step 3: Cross multiply
    43,811.04x = 65,755.60 × 20,450.72
  4. Step 4: Simplify right side
    43,811.04x = 1,344,749,364.03
  5. Step 5: Solve for x
    x = 1,344,749,364.03/43,811.04
  6. Step 6: Final answer
    x = 30,694.30

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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.