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Finding the Fourth Proportional to 35,608, 49,143.36 and 20,704

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Solution

The fourth proportional to 35,608, 49,143.36 and 20,704 is: 28,574.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,608 : 49,143.36 = 20,704 : x
  2. Step 2: Convert to fraction form
    35,608/49,143.36 = 20,704/x
  3. Step 3: Cross multiply
    35,608x = 49,143.36 × 20,704
  4. Step 4: Simplify right side
    35,608x = 1,017,464,125.44
  5. Step 5: Solve for x
    x = 1,017,464,125.44/35,608
  6. Step 6: Final answer
    x = 28,574.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.