Home / 31,661.20-47,474.26-12,954.38

Finding the Fourth Proportional to 31,661.20, 47,474.26 and 12,954.38

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Solution

The fourth proportional to 31,661.20, 47,474.26 and 12,954.38 is: 19,424.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,661.20 : 47,474.26 = 12,954.38 : x
  2. Step 2: Convert to fraction form
    31,661.20/47,474.26 = 12,954.38/x
  3. Step 3: Cross multiply
    31,661.20x = 47,474.26 × 12,954.38
  4. Step 4: Simplify right side
    31,661.20x = 614,999,604.26
  5. Step 5: Solve for x
    x = 614,999,604.26/31,661.20
  6. Step 6: Final answer
    x = 19,424.39

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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.