Home / 43,481.44-65,222.64-12,316.96

Finding the Fourth Proportional to 43,481.44, 65,222.64 and 12,316.96

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Solution

The fourth proportional to 43,481.44, 65,222.64 and 12,316.96 is: 18,475.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,481.44 : 65,222.64 = 12,316.96 : x
  2. Step 2: Convert to fraction form
    43,481.44/65,222.64 = 12,316.96/x
  3. Step 3: Cross multiply
    43,481.44x = 65,222.64 × 12,316.96
  4. Step 4: Simplify right side
    43,481.44x = 803,344,647.97
  5. Step 5: Solve for x
    x = 803,344,647.97/43,481.44
  6. Step 6: Final answer
    x = 18,475.58

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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.