Home / 26,911.94-40,378.16-12,117.46

Finding the Fourth Proportional to 26,911.94, 40,378.16 and 12,117.46

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Solution

The fourth proportional to 26,911.94, 40,378.16 and 12,117.46 is: 18,180.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,911.94 : 40,378.16 = 12,117.46 : x
  2. Step 2: Convert to fraction form
    26,911.94/40,378.16 = 12,117.46/x
  3. Step 3: Cross multiply
    26,911.94x = 40,378.16 × 12,117.46
  4. Step 4: Simplify right side
    26,911.94x = 489,280,738.67
  5. Step 5: Solve for x
    x = 489,280,738.67/26,911.94
  6. Step 6: Final answer
    x = 18,180.81

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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.