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Finding the Fourth Proportional to 43,804.64, 65,699.28 and 14,218.16

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Solution

The fourth proportional to 43,804.64, 65,699.28 and 14,218.16 is: 21,324.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,804.64 : 65,699.28 = 14,218.16 : x
  2. Step 2: Convert to fraction form
    43,804.64/65,699.28 = 14,218.16/x
  3. Step 3: Cross multiply
    43,804.64x = 65,699.28 × 14,218.16
  4. Step 4: Simplify right side
    43,804.64x = 934,122,874.92
  5. Step 5: Solve for x
    x = 934,122,874.92/43,804.64
  6. Step 6: Final answer
    x = 21,324.75

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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.