Home / 35,884.78-49,517.78-20,778.47

Finding the Fourth Proportional to 35,884.78, 49,517.78 and 20,778.47

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Solution

The fourth proportional to 35,884.78, 49,517.78 and 20,778.47 is: 28,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,884.78 : 49,517.78 = 20,778.47 : x
  2. Step 2: Convert to fraction form
    35,884.78/49,517.78 = 20,778.47/x
  3. Step 3: Cross multiply
    35,884.78x = 49,517.78 × 20,778.47
  4. Step 4: Simplify right side
    35,884.78x = 1,028,903,706.20
  5. Step 5: Solve for x
    x = 1,028,903,706.20/35,884.78
  6. Step 6: Final answer
    x = 28,672.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.