Home / 31,659.36-47,487.36-11,936.64

Finding the Fourth Proportional to 31,659.36, 47,487.36 and 11,936.64

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Solution

The fourth proportional to 31,659.36, 47,487.36 and 11,936.64 is: 17,904.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,659.36 : 47,487.36 = 11,936.64 : x
  2. Step 2: Convert to fraction form
    31,659.36/47,487.36 = 11,936.64/x
  3. Step 3: Cross multiply
    31,659.36x = 47,487.36 × 11,936.64
  4. Step 4: Simplify right side
    31,659.36x = 566,839,520.87
  5. Step 5: Solve for x
    x = 566,839,520.87/31,659.36
  6. Step 6: Final answer
    x = 17,904.33

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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.