Home / 20,185.52-30,231.32-19,484.73

Finding the Fourth Proportional to 20,185.52, 30,231.32 and 19,484.73

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Solution

The fourth proportional to 20,185.52, 30,231.32 and 19,484.73 is: 29,181.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.52 : 30,231.32 = 19,484.73 : x
  2. Step 2: Convert to fraction form
    20,185.52/30,231.32 = 19,484.73/x
  3. Step 3: Cross multiply
    20,185.52x = 30,231.32 × 19,484.73
  4. Step 4: Simplify right side
    20,185.52x = 589,049,010.32
  5. Step 5: Solve for x
    x = 589,049,010.32/20,185.52
  6. Step 6: Final answer
    x = 29,181.77

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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.