Home / 28,018.75-42,028.26-8,297.68

Finding the Fourth Proportional to 28,018.75, 42,028.26 and 8,297.68

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Solution

The fourth proportional to 28,018.75, 42,028.26 and 8,297.68 is: 12,446.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018.75 : 42,028.26 = 8,297.68 : x
  2. Step 2: Convert to fraction form
    28,018.75/42,028.26 = 8,297.68/x
  3. Step 3: Cross multiply
    28,018.75x = 42,028.26 × 8,297.68
  4. Step 4: Simplify right side
    28,018.75x = 348,737,188.62
  5. Step 5: Solve for x
    x = 348,737,188.62/28,018.75
  6. Step 6: Final answer
    x = 12,446.56

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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.