Home / 35,143.68-52,668.72-12,936.54

Finding the Fourth Proportional to 35,143.68, 52,668.72 and 12,936.54

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Solution

The fourth proportional to 35,143.68, 52,668.72 and 12,936.54 is: 19,387.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,143.68 : 52,668.72 = 12,936.54 : x
  2. Step 2: Convert to fraction form
    35,143.68/52,668.72 = 12,936.54/x
  3. Step 3: Cross multiply
    35,143.68x = 52,668.72 × 12,936.54
  4. Step 4: Simplify right side
    35,143.68x = 681,351,003.03
  5. Step 5: Solve for x
    x = 681,351,003.03/35,143.68
  6. Step 6: Final answer
    x = 19,387.58

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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.