Home / 40,896.48-61,351.20-13,188

Finding the Fourth Proportional to 40,896.48, 61,351.20 and 13,188

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Solution

The fourth proportional to 40,896.48, 61,351.20 and 13,188 is: 19,784.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,896.48 : 61,351.20 = 13,188 : x
  2. Step 2: Convert to fraction form
    40,896.48/61,351.20 = 13,188/x
  3. Step 3: Cross multiply
    40,896.48x = 61,351.20 × 13,188
  4. Step 4: Simplify right side
    40,896.48x = 809,099,625.60
  5. Step 5: Solve for x
    x = 809,099,625.60/40,896.48
  6. Step 6: Final answer
    x = 19,784.09

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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.