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Finding the Fourth Proportional to 39,804.16, 59,704.08 and 12,100

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Solution

The fourth proportional to 39,804.16, 59,704.08 and 12,100 is: 18,149.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,804.16 : 59,704.08 = 12,100 : x
  2. Step 2: Convert to fraction form
    39,804.16/59,704.08 = 12,100/x
  3. Step 3: Cross multiply
    39,804.16x = 59,704.08 × 12,100
  4. Step 4: Simplify right side
    39,804.16x = 722,419,368
  5. Step 5: Solve for x
    x = 722,419,368/39,804.16
  6. Step 6: Final answer
    x = 18,149.34

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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.