Home / 31,855.18-47,787.37-11,862.99

Finding the Fourth Proportional to 31,855.18, 47,787.37 and 11,862.99

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Solution

The fourth proportional to 31,855.18, 47,787.37 and 11,862.99 is: 17,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,855.18 : 47,787.37 = 11,862.99 : x
  2. Step 2: Convert to fraction form
    31,855.18/47,787.37 = 11,862.99/x
  3. Step 3: Cross multiply
    31,855.18x = 47,787.37 × 11,862.99
  4. Step 4: Simplify right side
    31,855.18x = 566,901,092.44
  5. Step 5: Solve for x
    x = 566,901,092.44/31,855.18
  6. Step 6: Final answer
    x = 17,796.20

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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.