Home / 20,784.51-31,181.38-5,992.27

Finding the Fourth Proportional to 20,784.51, 31,181.38 and 5,992.27

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Solution

The fourth proportional to 20,784.51, 31,181.38 and 5,992.27 is: 8,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784.51 : 31,181.38 = 5,992.27 : x
  2. Step 2: Convert to fraction form
    20,784.51/31,181.38 = 5,992.27/x
  3. Step 3: Cross multiply
    20,784.51x = 31,181.38 × 5,992.27
  4. Step 4: Simplify right side
    20,784.51x = 186,847,295.92
  5. Step 5: Solve for x
    x = 186,847,295.92/20,784.51
  6. Step 6: Final answer
    x = 8,989.74

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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.