Home / 20,623.60-30,946.74-8,936.92

Finding the Fourth Proportional to 20,623.60, 30,946.74 and 8,936.92

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Solution

The fourth proportional to 20,623.60, 30,946.74 and 8,936.92 is: 13,410.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.60 : 30,946.74 = 8,936.92 : x
  2. Step 2: Convert to fraction form
    20,623.60/30,946.74 = 8,936.92/x
  3. Step 3: Cross multiply
    20,623.60x = 30,946.74 × 8,936.92
  4. Step 4: Simplify right side
    20,623.60x = 276,568,539.64
  5. Step 5: Solve for x
    x = 276,568,539.64/20,623.60
  6. Step 6: Final answer
    x = 13,410.29

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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.