Home / 31,942.80-47,936.88-14,427.36

Finding the Fourth Proportional to 31,942.80, 47,936.88 and 14,427.36

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Solution

The fourth proportional to 31,942.80, 47,936.88 and 14,427.36 is: 21,651.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,942.80 : 47,936.88 = 14,427.36 : x
  2. Step 2: Convert to fraction form
    31,942.80/47,936.88 = 14,427.36/x
  3. Step 3: Cross multiply
    31,942.80x = 47,936.88 × 14,427.36
  4. Step 4: Simplify right side
    31,942.80x = 691,602,625.04
  5. Step 5: Solve for x
    x = 691,602,625.04/31,942.80
  6. Step 6: Final answer
    x = 21,651.28

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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.