Home / 42,517.71-63,735.21-20,325.33

Finding the Fourth Proportional to 42,517.71, 63,735.21 and 20,325.33

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Solution

The fourth proportional to 42,517.71, 63,735.21 and 20,325.33 is: 30,468.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,517.71 : 63,735.21 = 20,325.33 : x
  2. Step 2: Convert to fraction form
    42,517.71/63,735.21 = 20,325.33/x
  3. Step 3: Cross multiply
    42,517.71x = 63,735.21 × 20,325.33
  4. Step 4: Simplify right side
    42,517.71x = 1,295,439,175.87
  5. Step 5: Solve for x
    x = 1,295,439,175.87/42,517.71
  6. Step 6: Final answer
    x = 30,468.23

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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.