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Finding the Fourth Proportional to 39,360, 59,022.56 and 11,273.64

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Solution

The fourth proportional to 39,360, 59,022.56 and 11,273.64 is: 16,905.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,360 : 59,022.56 = 11,273.64 : x
  2. Step 2: Convert to fraction form
    39,360/59,022.56 = 11,273.64/x
  3. Step 3: Cross multiply
    39,360x = 59,022.56 × 11,273.64
  4. Step 4: Simplify right side
    39,360x = 665,399,093.32
  5. Step 5: Solve for x
    x = 665,399,093.32/39,360
  6. Step 6: Final answer
    x = 16,905.46

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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.