Home / 20,822.08-31,232.84-6,782.62

Finding the Fourth Proportional to 20,822.08, 31,232.84 and 6,782.62

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Solution

The fourth proportional to 20,822.08, 31,232.84 and 6,782.62 is: 10,173.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,822.08 : 31,232.84 = 6,782.62 : x
  2. Step 2: Convert to fraction form
    20,822.08/31,232.84 = 6,782.62/x
  3. Step 3: Cross multiply
    20,822.08x = 31,232.84 × 6,782.62
  4. Step 4: Simplify right side
    20,822.08x = 211,840,485.24
  5. Step 5: Solve for x
    x = 211,840,485.24/20,822.08
  6. Step 6: Final answer
    x = 10,173.84

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1.5x scale

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.