Home / 30,964.30-46,431.80-11,997.81

Finding the Fourth Proportional to 30,964.30, 46,431.80 and 11,997.81

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Solution

The fourth proportional to 30,964.30, 46,431.80 and 11,997.81 is: 17,991.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,964.30 : 46,431.80 = 11,997.81 : x
  2. Step 2: Convert to fraction form
    30,964.30/46,431.80 = 11,997.81/x
  3. Step 3: Cross multiply
    30,964.30x = 46,431.80 × 11,997.81
  4. Step 4: Simplify right side
    30,964.30x = 557,079,914.36
  5. Step 5: Solve for x
    x = 557,079,914.36/30,964.30
  6. Step 6: Final answer
    x = 17,991.04

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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.