Home / 31,644.56-47,433.84-14,126.72

Finding the Fourth Proportional to 31,644.56, 47,433.84 and 14,126.72

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Solution

The fourth proportional to 31,644.56, 47,433.84 and 14,126.72 is: 21,175.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,644.56 : 47,433.84 = 14,126.72 : x
  2. Step 2: Convert to fraction form
    31,644.56/47,433.84 = 14,126.72/x
  3. Step 3: Cross multiply
    31,644.56x = 47,433.84 × 14,126.72
  4. Step 4: Simplify right side
    31,644.56x = 670,084,576.20
  5. Step 5: Solve for x
    x = 670,084,576.20/31,644.56
  6. Step 6: Final answer
    x = 21,175.35

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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.