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Finding the Fourth Proportional to 30,662.25, 46,007.89 and 12,896.79

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Solution

The fourth proportional to 30,662.25, 46,007.89 and 12,896.79 is: 19,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,662.25 : 46,007.89 = 12,896.79 : x
  2. Step 2: Convert to fraction form
    30,662.25/46,007.89 = 12,896.79/x
  3. Step 3: Cross multiply
    30,662.25x = 46,007.89 × 12,896.79
  4. Step 4: Simplify right side
    30,662.25x = 593,354,315.37
  5. Step 5: Solve for x
    x = 593,354,315.37/30,662.25
  6. Step 6: Final answer
    x = 19,351.30

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1.5x scale

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.