Home / 20,628.24-30,973.92-18,183.64

Finding the Fourth Proportional to 20,628.24, 30,973.92 and 18,183.64

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Solution

The fourth proportional to 20,628.24, 30,973.92 and 18,183.64 is: 27,303.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628.24 : 30,973.92 = 18,183.64 : x
  2. Step 2: Convert to fraction form
    20,628.24/30,973.92 = 18,183.64/x
  3. Step 3: Cross multiply
    20,628.24x = 30,973.92 × 18,183.64
  4. Step 4: Simplify right side
    20,628.24x = 563,218,610.67
  5. Step 5: Solve for x
    x = 563,218,610.67/20,628.24
  6. Step 6: Final answer
    x = 27,303.28

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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.