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Finding the Fourth Proportional to 30,636.77, 45,958.86 and 10,917.32

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Solution

The fourth proportional to 30,636.77, 45,958.86 and 10,917.32 is: 16,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,636.77 : 45,958.86 = 10,917.32 : x
  2. Step 2: Convert to fraction form
    30,636.77/45,958.86 = 10,917.32/x
  3. Step 3: Cross multiply
    30,636.77x = 45,958.86 × 10,917.32
  4. Step 4: Simplify right side
    30,636.77x = 501,747,351.66
  5. Step 5: Solve for x
    x = 501,747,351.66/30,636.77
  6. Step 6: Final answer
    x = 16,377.30

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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.