Home / 21,651.30-32,451.50-9,791.28

Finding the Fourth Proportional to 21,651.30, 32,451.50 and 9,791.28

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Solution

The fourth proportional to 21,651.30, 32,451.50 and 9,791.28 is: 14,675.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651.30 : 32,451.50 = 9,791.28 : x
  2. Step 2: Convert to fraction form
    21,651.30/32,451.50 = 9,791.28/x
  3. Step 3: Cross multiply
    21,651.30x = 32,451.50 × 9,791.28
  4. Step 4: Simplify right side
    21,651.30x = 317,741,722.92
  5. Step 5: Solve for x
    x = 317,741,722.92/21,651.30
  6. Step 6: Final answer
    x = 14,675.41

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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.