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Finding the Fourth Proportional to 43,863, 65,804.92 and 14,280.86

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Solution

The fourth proportional to 43,863, 65,804.92 and 14,280.86 is: 21,424.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,863 : 65,804.92 = 14,280.86 : x
  2. Step 2: Convert to fraction form
    43,863/65,804.92 = 14,280.86/x
  3. Step 3: Cross multiply
    43,863x = 65,804.92 × 14,280.86
  4. Step 4: Simplify right side
    43,863x = 939,750,849.83
  5. Step 5: Solve for x
    x = 939,750,849.83/43,863
  6. Step 6: Final answer
    x = 21,424.68

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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.