Home / 20,027.36-30,008.16-6,872.64

Finding the Fourth Proportional to 20,027.36, 30,008.16 and 6,872.64

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Solution

The fourth proportional to 20,027.36, 30,008.16 and 6,872.64 is: 10,297.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,027.36 : 30,008.16 = 6,872.64 : x
  2. Step 2: Convert to fraction form
    20,027.36/30,008.16 = 6,872.64/x
  3. Step 3: Cross multiply
    20,027.36x = 30,008.16 × 6,872.64
  4. Step 4: Simplify right side
    20,027.36x = 206,235,280.74
  5. Step 5: Solve for x
    x = 206,235,280.74/20,027.36
  6. Step 6: Final answer
    x = 10,297.68

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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.