Home / 31,179.21-46,787.26-11,471.60

Finding the Fourth Proportional to 31,179.21, 46,787.26 and 11,471.60

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Solution

The fourth proportional to 31,179.21, 46,787.26 and 11,471.60 is: 17,214.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,179.21 : 46,787.26 = 11,471.60 : x
  2. Step 2: Convert to fraction form
    31,179.21/46,787.26 = 11,471.60/x
  3. Step 3: Cross multiply
    31,179.21x = 46,787.26 × 11,471.60
  4. Step 4: Simplify right side
    31,179.21x = 536,724,731.82
  5. Step 5: Solve for x
    x = 536,724,731.82/31,179.21
  6. Step 6: Final answer
    x = 17,214.19

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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.