Home / 31,107.30-46,657.50-11,112.51

Finding the Fourth Proportional to 31,107.30, 46,657.50 and 11,112.51

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Solution

The fourth proportional to 31,107.30, 46,657.50 and 11,112.51 is: 16,667.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,107.30 : 46,657.50 = 11,112.51 : x
  2. Step 2: Convert to fraction form
    31,107.30/46,657.50 = 11,112.51/x
  3. Step 3: Cross multiply
    31,107.30x = 46,657.50 × 11,112.51
  4. Step 4: Simplify right side
    31,107.30x = 518,481,935.33
  5. Step 5: Solve for x
    x = 518,481,935.33/31,107.30
  6. Step 6: Final answer
    x = 16,667.53

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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.