Home / 14,183.08-21,380.81-13,231.60

Finding the Fourth Proportional to 14,183.08, 21,380.81 and 13,231.60

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Solution

The fourth proportional to 14,183.08, 21,380.81 and 13,231.60 is: 19,946.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,183.08 : 21,380.81 = 13,231.60 : x
  2. Step 2: Convert to fraction form
    14,183.08/21,380.81 = 13,231.60/x
  3. Step 3: Cross multiply
    14,183.08x = 21,380.81 × 13,231.60
  4. Step 4: Simplify right side
    14,183.08x = 282,902,325.60
  5. Step 5: Solve for x
    x = 282,902,325.60/14,183.08
  6. Step 6: Final answer
    x = 19,946.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.