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Finding the Fourth Proportional to 35,999.81, 54,007.39 and 13,813.00

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Solution

The fourth proportional to 35,999.81, 54,007.39 and 13,813.00 is: 20,722.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,999.81 : 54,007.39 = 13,813.00 : x
  2. Step 2: Convert to fraction form
    35,999.81/54,007.39 = 13,813.00/x
  3. Step 3: Cross multiply
    35,999.81x = 54,007.39 × 13,813.00
  4. Step 4: Simplify right side
    35,999.81x = 746,003,960.32
  5. Step 5: Solve for x
    x = 746,003,960.32/35,999.81
  6. Step 6: Final answer
    x = 20,722.44

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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.