Home / 30,906.78-46,364.80-11,189.96

Finding the Fourth Proportional to 30,906.78, 46,364.80 and 11,189.96

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Solution

The fourth proportional to 30,906.78, 46,364.80 and 11,189.96 is: 16,786.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,906.78 : 46,364.80 = 11,189.96 : x
  2. Step 2: Convert to fraction form
    30,906.78/46,364.80 = 11,189.96/x
  3. Step 3: Cross multiply
    30,906.78x = 46,364.80 × 11,189.96
  4. Step 4: Simplify right side
    30,906.78x = 518,820,257.41
  5. Step 5: Solve for x
    x = 518,820,257.41/30,906.78
  6. Step 6: Final answer
    x = 16,786.62

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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.