Home / 22,816.20-31,485.96-12,744

Finding the Fourth Proportional to 22,816.20, 31,485.96 and 12,744

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Solution

The fourth proportional to 22,816.20, 31,485.96 and 12,744 is: 17,586.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,816.20 : 31,485.96 = 12,744 : x
  2. Step 2: Convert to fraction form
    22,816.20/31,485.96 = 12,744/x
  3. Step 3: Cross multiply
    22,816.20x = 31,485.96 × 12,744
  4. Step 4: Simplify right side
    22,816.20x = 401,257,074.24
  5. Step 5: Solve for x
    x = 401,257,074.24/22,816.20
  6. Step 6: Final answer
    x = 17,586.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.