Home / 31,539.44-47,304.84-18,398

Finding the Fourth Proportional to 31,539.44, 47,304.84 and 18,398

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Solution

The fourth proportional to 31,539.44, 47,304.84 and 18,398 is: 27,594.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.44 : 47,304.84 = 18,398 : x
  2. Step 2: Convert to fraction form
    31,539.44/47,304.84 = 18,398/x
  3. Step 3: Cross multiply
    31,539.44x = 47,304.84 × 18,398
  4. Step 4: Simplify right side
    31,539.44x = 870,314,446.32
  5. Step 5: Solve for x
    x = 870,314,446.32/31,539.44
  6. Step 6: Final answer
    x = 27,594.48

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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.