Home / 30,906.30-46,355.32-8,721.48

Finding the Fourth Proportional to 30,906.30, 46,355.32 and 8,721.48

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Solution

The fourth proportional to 30,906.30, 46,355.32 and 8,721.48 is: 13,081.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,906.30 : 46,355.32 = 8,721.48 : x
  2. Step 2: Convert to fraction form
    30,906.30/46,355.32 = 8,721.48/x
  3. Step 3: Cross multiply
    30,906.30x = 46,355.32 × 8,721.48
  4. Step 4: Simplify right side
    30,906.30x = 404,286,996.27
  5. Step 5: Solve for x
    x = 404,286,996.27/30,906.30
  6. Step 6: Final answer
    x = 13,081.05

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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.