Home / 31,651.20-47,487.80-11,935.44

Finding the Fourth Proportional to 31,651.20, 47,487.80 and 11,935.44

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Solution

The fourth proportional to 31,651.20, 47,487.80 and 11,935.44 is: 17,907.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,651.20 : 47,487.80 = 11,935.44 : x
  2. Step 2: Convert to fraction form
    31,651.20/47,487.80 = 11,935.44/x
  3. Step 3: Cross multiply
    31,651.20x = 47,487.80 × 11,935.44
  4. Step 4: Simplify right side
    31,651.20x = 566,787,787.63
  5. Step 5: Solve for x
    x = 566,787,787.63/31,651.20
  6. Step 6: Final answer
    x = 17,907.31

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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.