Home / 43,678.91-65,543.31-17,021.54

Finding the Fourth Proportional to 43,678.91, 65,543.31 and 17,021.54

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Solution

The fourth proportional to 43,678.91, 65,543.31 and 17,021.54 is: 25,542.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,678.91 : 65,543.31 = 17,021.54 : x
  2. Step 2: Convert to fraction form
    43,678.91/65,543.31 = 17,021.54/x
  3. Step 3: Cross multiply
    43,678.91x = 65,543.31 × 17,021.54
  4. Step 4: Simplify right side
    43,678.91x = 1,115,648,236.76
  5. Step 5: Solve for x
    x = 1,115,648,236.76/43,678.91
  6. Step 6: Final answer
    x = 25,542.03

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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.