Home / 20,784.92-31,181.99-5,992.68

Finding the Fourth Proportional to 20,784.92, 31,181.99 and 5,992.68

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Solution

The fourth proportional to 20,784.92, 31,181.99 and 5,992.68 is: 8,990.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784.92 : 31,181.99 = 5,992.68 : x
  2. Step 2: Convert to fraction form
    20,784.92/31,181.99 = 5,992.68/x
  3. Step 3: Cross multiply
    20,784.92x = 31,181.99 × 5,992.68
  4. Step 4: Simplify right side
    20,784.92x = 186,863,774.80
  5. Step 5: Solve for x
    x = 186,863,774.80/20,784.92
  6. Step 6: Final answer
    x = 8,990.35

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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.