Home / 26,145.78-39,218.33-6,424.51

Finding the Fourth Proportional to 26,145.78, 39,218.33 and 6,424.51

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Solution

The fourth proportional to 26,145.78, 39,218.33 and 6,424.51 is: 9,636.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,145.78 : 39,218.33 = 6,424.51 : x
  2. Step 2: Convert to fraction form
    26,145.78/39,218.33 = 6,424.51/x
  3. Step 3: Cross multiply
    26,145.78x = 39,218.33 × 6,424.51
  4. Step 4: Simplify right side
    26,145.78x = 251,958,508.68
  5. Step 5: Solve for x
    x = 251,958,508.68/26,145.78
  6. Step 6: Final answer
    x = 9,636.68

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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.