Home / 30,682.24-45,991.44-20,822.32

Finding the Fourth Proportional to 30,682.24, 45,991.44 and 20,822.32

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Solution

The fourth proportional to 30,682.24, 45,991.44 and 20,822.32 is: 31,211.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,682.24 : 45,991.44 = 20,822.32 : x
  2. Step 2: Convert to fraction form
    30,682.24/45,991.44 = 20,822.32/x
  3. Step 3: Cross multiply
    30,682.24x = 45,991.44 × 20,822.32
  4. Step 4: Simplify right side
    30,682.24x = 957,648,480.94
  5. Step 5: Solve for x
    x = 957,648,480.94/30,682.24
  6. Step 6: Final answer
    x = 31,211.82

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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.