Home / 20,725.79-31,090.97-5,937.12

Finding the Fourth Proportional to 20,725.79, 31,090.97 and 5,937.12

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Solution

The fourth proportional to 20,725.79, 31,090.97 and 5,937.12 is: 8,906.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.79 : 31,090.97 = 5,937.12 : x
  2. Step 2: Convert to fraction form
    20,725.79/31,090.97 = 5,937.12/x
  3. Step 3: Cross multiply
    20,725.79x = 31,090.97 × 5,937.12
  4. Step 4: Simplify right side
    20,725.79x = 184,590,790.12
  5. Step 5: Solve for x
    x = 184,590,790.12/20,725.79
  6. Step 6: Final answer
    x = 8,906.34

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.