Home / 27,986.55-41,994.41-12,400.53

Finding the Fourth Proportional to 27,986.55, 41,994.41 and 12,400.53

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Solution

The fourth proportional to 27,986.55, 41,994.41 and 12,400.53 is: 18,607.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986.55 : 41,994.41 = 12,400.53 : x
  2. Step 2: Convert to fraction form
    27,986.55/41,994.41 = 12,400.53/x
  3. Step 3: Cross multiply
    27,986.55x = 41,994.41 × 12,400.53
  4. Step 4: Simplify right side
    27,986.55x = 520,752,879.03
  5. Step 5: Solve for x
    x = 520,752,879.03/27,986.55
  6. Step 6: Final answer
    x = 18,607.26

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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.