Home / 30,930.94-46,355.10-16,108.78

Finding the Fourth Proportional to 30,930.94, 46,355.10 and 16,108.78

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Solution

The fourth proportional to 30,930.94, 46,355.10 and 16,108.78 is: 24,141.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,930.94 : 46,355.10 = 16,108.78 : x
  2. Step 2: Convert to fraction form
    30,930.94/46,355.10 = 16,108.78/x
  3. Step 3: Cross multiply
    30,930.94x = 46,355.10 × 16,108.78
  4. Step 4: Simplify right side
    30,930.94x = 746,724,107.78
  5. Step 5: Solve for x
    x = 746,724,107.78/30,930.94
  6. Step 6: Final answer
    x = 24,141.66

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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.