Home / 27,981.37-41,986.63-12,395.35

Finding the Fourth Proportional to 27,981.37, 41,986.63 and 12,395.35

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Solution

The fourth proportional to 27,981.37, 41,986.63 and 12,395.35 is: 18,599.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981.37 : 41,986.63 = 12,395.35 : x
  2. Step 2: Convert to fraction form
    27,981.37/41,986.63 = 12,395.35/x
  3. Step 3: Cross multiply
    27,981.37x = 41,986.63 × 12,395.35
  4. Step 4: Simplify right side
    27,981.37x = 520,438,733.25
  5. Step 5: Solve for x
    x = 520,438,733.25/27,981.37
  6. Step 6: Final answer
    x = 18,599.48

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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.