Home / 31,467.29-47,201.06-12,747.68

Finding the Fourth Proportional to 31,467.29, 47,201.06 and 12,747.68

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Solution

The fourth proportional to 31,467.29, 47,201.06 and 12,747.68 is: 19,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,467.29 : 47,201.06 = 12,747.68 : x
  2. Step 2: Convert to fraction form
    31,467.29/47,201.06 = 12,747.68/x
  3. Step 3: Cross multiply
    31,467.29x = 47,201.06 × 12,747.68
  4. Step 4: Simplify right side
    31,467.29x = 601,704,158.41
  5. Step 5: Solve for x
    x = 601,704,158.41/31,467.29
  6. Step 6: Final answer
    x = 19,121.57

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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.