Home / 31,991.16-47,990.79-10,935.24

Finding the Fourth Proportional to 31,991.16, 47,990.79 and 10,935.24

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Solution

The fourth proportional to 31,991.16, 47,990.79 and 10,935.24 is: 16,404.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,991.16 : 47,990.79 = 10,935.24 : x
  2. Step 2: Convert to fraction form
    31,991.16/47,990.79 = 10,935.24/x
  3. Step 3: Cross multiply
    31,991.16x = 47,990.79 × 10,935.24
  4. Step 4: Simplify right side
    31,991.16x = 524,790,806.44
  5. Step 5: Solve for x
    x = 524,790,806.44/31,991.16
  6. Step 6: Final answer
    x = 16,404.24

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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.