Home / 20,622.08-30,937.92-8,936.48

Finding the Fourth Proportional to 20,622.08, 30,937.92 and 8,936.48

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Solution

The fourth proportional to 20,622.08, 30,937.92 and 8,936.48 is: 13,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,622.08 : 30,937.92 = 8,936.48 : x
  2. Step 2: Convert to fraction form
    20,622.08/30,937.92 = 8,936.48/x
  3. Step 3: Cross multiply
    20,622.08x = 30,937.92 × 8,936.48
  4. Step 4: Simplify right side
    20,622.08x = 276,476,103.32
  5. Step 5: Solve for x
    x = 276,476,103.32/20,622.08
  6. Step 6: Final answer
    x = 13,406.80

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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.