Home / 20,718.94-28,592.37-11,766.67

Finding the Fourth Proportional to 20,718.94, 28,592.37 and 11,766.67

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Solution

The fourth proportional to 20,718.94, 28,592.37 and 11,766.67 is: 16,238.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718.94 : 28,592.37 = 11,766.67 : x
  2. Step 2: Convert to fraction form
    20,718.94/28,592.37 = 11,766.67/x
  3. Step 3: Cross multiply
    20,718.94x = 28,592.37 × 11,766.67
  4. Step 4: Simplify right side
    20,718.94x = 336,436,877.73
  5. Step 5: Solve for x
    x = 336,436,877.73/20,718.94
  6. Step 6: Final answer
    x = 16,238.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.