Home / 31,121.22-46,684.68-12,396.72

Finding the Fourth Proportional to 31,121.22, 46,684.68 and 12,396.72

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Solution

The fourth proportional to 31,121.22, 46,684.68 and 12,396.72 is: 18,596.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,121.22 : 46,684.68 = 12,396.72 : x
  2. Step 2: Convert to fraction form
    31,121.22/46,684.68 = 12,396.72/x
  3. Step 3: Cross multiply
    31,121.22x = 46,684.68 × 12,396.72
  4. Step 4: Simplify right side
    31,121.22x = 578,736,906.25
  5. Step 5: Solve for x
    x = 578,736,906.25/31,121.22
  6. Step 6: Final answer
    x = 18,596.22

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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.