Home / 20,822.49-31,230.50-6,968.25

Finding the Fourth Proportional to 20,822.49, 31,230.50 and 6,968.25

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Solution

The fourth proportional to 20,822.49, 31,230.50 and 6,968.25 is: 10,451.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,822.49 : 31,230.50 = 6,968.25 : x
  2. Step 2: Convert to fraction form
    20,822.49/31,230.50 = 6,968.25/x
  3. Step 3: Cross multiply
    20,822.49x = 31,230.50 × 6,968.25
  4. Step 4: Simplify right side
    20,822.49x = 217,621,896.78
  5. Step 5: Solve for x
    x = 217,621,896.78/20,822.49
  6. Step 6: Final answer
    x = 10,451.29

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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.