Home / 30,930.66-46,392.21-13,168.49

Finding the Fourth Proportional to 30,930.66, 46,392.21 and 13,168.49

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Solution

The fourth proportional to 30,930.66, 46,392.21 and 13,168.49 is: 19,751.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,930.66 : 46,392.21 = 13,168.49 : x
  2. Step 2: Convert to fraction form
    30,930.66/46,392.21 = 13,168.49/x
  3. Step 3: Cross multiply
    30,930.66x = 46,392.21 × 13,168.49
  4. Step 4: Simplify right side
    30,930.66x = 610,915,121.50
  5. Step 5: Solve for x
    x = 610,915,121.50/30,930.66
  6. Step 6: Final answer
    x = 19,751.12

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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.