Home / 31,912.62-47,868.90-14,361.95

Finding the Fourth Proportional to 31,912.62, 47,868.90 and 14,361.95

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Solution

The fourth proportional to 31,912.62, 47,868.90 and 14,361.95 is: 21,542.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,912.62 : 47,868.90 = 14,361.95 : x
  2. Step 2: Convert to fraction form
    31,912.62/47,868.90 = 14,361.95/x
  3. Step 3: Cross multiply
    31,912.62x = 47,868.90 × 14,361.95
  4. Step 4: Simplify right side
    31,912.62x = 687,490,748.36
  5. Step 5: Solve for x
    x = 687,490,748.36/31,912.62
  6. Step 6: Final answer
    x = 21,542.91

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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.