Home / 21,403.44-32,078.16-16,433.28

Finding the Fourth Proportional to 21,403.44, 32,078.16 and 16,433.28

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Solution

The fourth proportional to 21,403.44, 32,078.16 and 16,433.28 is: 24,629.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.44 : 32,078.16 = 16,433.28 : x
  2. Step 2: Convert to fraction form
    21,403.44/32,078.16 = 16,433.28/x
  3. Step 3: Cross multiply
    21,403.44x = 32,078.16 × 16,433.28
  4. Step 4: Simplify right side
    21,403.44x = 527,149,385.16
  5. Step 5: Solve for x
    x = 527,149,385.16/21,403.44
  6. Step 6: Final answer
    x = 24,629.19

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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.