Home / 42,936.44-64,404.84-15,215

Finding the Fourth Proportional to 42,936.44, 64,404.84 and 15,215

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Solution

The fourth proportional to 42,936.44, 64,404.84 and 15,215 is: 22,822.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,936.44 : 64,404.84 = 15,215 : x
  2. Step 2: Convert to fraction form
    42,936.44/64,404.84 = 15,215/x
  3. Step 3: Cross multiply
    42,936.44x = 64,404.84 × 15,215
  4. Step 4: Simplify right side
    42,936.44x = 979,919,640.60
  5. Step 5: Solve for x
    x = 979,919,640.60/42,936.44
  6. Step 6: Final answer
    x = 22,822.56

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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.