Home / 30,676.24-45,982.44-20,816.32

Finding the Fourth Proportional to 30,676.24, 45,982.44 and 20,816.32

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Solution

The fourth proportional to 30,676.24, 45,982.44 and 20,816.32 is: 31,202.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,676.24 : 45,982.44 = 20,816.32 : x
  2. Step 2: Convert to fraction form
    30,676.24/45,982.44 = 20,816.32/x
  3. Step 3: Cross multiply
    30,676.24x = 45,982.44 × 20,816.32
  4. Step 4: Simplify right side
    30,676.24x = 957,185,185.42
  5. Step 5: Solve for x
    x = 957,185,185.42/30,676.24
  6. Step 6: Final answer
    x = 31,202.82

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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.