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Finding the Fourth Proportional to 29,170, 43,735.56 and 13,579.12

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Solution

The fourth proportional to 29,170, 43,735.56 and 13,579.12 is: 20,359.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,170 : 43,735.56 = 13,579.12 : x
  2. Step 2: Convert to fraction form
    29,170/43,735.56 = 13,579.12/x
  3. Step 3: Cross multiply
    29,170x = 43,735.56 × 13,579.12
  4. Step 4: Simplify right side
    29,170x = 593,890,417.51
  5. Step 5: Solve for x
    x = 593,890,417.51/29,170
  6. Step 6: Final answer
    x = 20,359.63

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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.