Home / 19,517.86-29,282.27-7,839.28

Finding the Fourth Proportional to 19,517.86, 29,282.27 and 7,839.28

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Solution

The fourth proportional to 19,517.86, 29,282.27 and 7,839.28 is: 11,761.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517.86 : 29,282.27 = 7,839.28 : x
  2. Step 2: Convert to fraction form
    19,517.86/29,282.27 = 7,839.28/x
  3. Step 3: Cross multiply
    19,517.86x = 29,282.27 × 7,839.28
  4. Step 4: Simplify right side
    19,517.86x = 229,551,913.57
  5. Step 5: Solve for x
    x = 229,551,913.57/19,517.86
  6. Step 6: Final answer
    x = 11,761.12

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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.