Home / 21,942.80-32,913.46-8,791.64

Finding the Fourth Proportional to 21,942.80, 32,913.46 and 8,791.64

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Solution

The fourth proportional to 21,942.80, 32,913.46 and 8,791.64 is: 13,187.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942.80 : 32,913.46 = 8,791.64 : x
  2. Step 2: Convert to fraction form
    21,942.80/32,913.46 = 8,791.64/x
  3. Step 3: Cross multiply
    21,942.80x = 32,913.46 × 8,791.64
  4. Step 4: Simplify right side
    21,942.80x = 289,363,291.47
  5. Step 5: Solve for x
    x = 289,363,291.47/21,942.80
  6. Step 6: Final answer
    x = 13,187.16

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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.