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Finding the Fourth Proportional to 36,804.71, 50,792.04 and 20,890.64

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Solution

The fourth proportional to 36,804.71, 50,792.04 and 20,890.64 is: 28,829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,804.71 : 50,792.04 = 20,890.64 : x
  2. Step 2: Convert to fraction form
    36,804.71/50,792.04 = 20,890.64/x
  3. Step 3: Cross multiply
    36,804.71x = 50,792.04 × 20,890.64
  4. Step 4: Simplify right side
    36,804.71x = 1,061,077,968.55
  5. Step 5: Solve for x
    x = 1,061,077,968.55/36,804.71
  6. Step 6: Final answer
    x = 28,829.95

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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.