Home / 31,168.42-46,741.68-8,975.86

Finding the Fourth Proportional to 31,168.42, 46,741.68 and 8,975.86

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Solution

The fourth proportional to 31,168.42, 46,741.68 and 8,975.86 is: 13,460.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,168.42 : 46,741.68 = 8,975.86 : x
  2. Step 2: Convert to fraction form
    31,168.42/46,741.68 = 8,975.86/x
  3. Step 3: Cross multiply
    31,168.42x = 46,741.68 × 8,975.86
  4. Step 4: Simplify right side
    31,168.42x = 419,546,775.84
  5. Step 5: Solve for x
    x = 419,546,775.84/31,168.42
  6. Step 6: Final answer
    x = 13,460.64

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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.