Home / 30,986.36-46,485.12-11,292.56

Finding the Fourth Proportional to 30,986.36, 46,485.12 and 11,292.56

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Solution

The fourth proportional to 30,986.36, 46,485.12 and 11,292.56 is: 16,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,986.36 : 46,485.12 = 11,292.56 : x
  2. Step 2: Convert to fraction form
    30,986.36/46,485.12 = 11,292.56/x
  3. Step 3: Cross multiply
    30,986.36x = 46,485.12 × 11,292.56
  4. Step 4: Simplify right side
    30,986.36x = 524,936,006.71
  5. Step 5: Solve for x
    x = 524,936,006.71/30,986.36
  6. Step 6: Final answer
    x = 16,940.87

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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.