Home / 31,717-43,769.46-19,141.75

Finding the Fourth Proportional to 31,717, 43,769.46 and 19,141.75

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Solution

The fourth proportional to 31,717, 43,769.46 and 19,141.75 is: 26,415.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,717 : 43,769.46 = 19,141.75 : x
  2. Step 2: Convert to fraction form
    31,717/43,769.46 = 19,141.75/x
  3. Step 3: Cross multiply
    31,717x = 43,769.46 × 19,141.75
  4. Step 4: Simplify right side
    31,717x = 837,824,060.96
  5. Step 5: Solve for x
    x = 837,824,060.96/31,717
  6. Step 6: Final answer
    x = 26,415.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.