Home / 27,968.12-41,981.36-12,396.68

Finding the Fourth Proportional to 27,968.12, 41,981.36 and 12,396.68

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Solution

The fourth proportional to 27,968.12, 41,981.36 and 12,396.68 is: 18,607.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,968.12 : 41,981.36 = 12,396.68 : x
  2. Step 2: Convert to fraction form
    27,968.12/41,981.36 = 12,396.68/x
  3. Step 3: Cross multiply
    27,968.12x = 41,981.36 × 12,396.68
  4. Step 4: Simplify right side
    27,968.12x = 520,429,485.88
  5. Step 5: Solve for x
    x = 520,429,485.88/27,968.12
  6. Step 6: Final answer
    x = 18,607.95

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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.