Home / 21,766.57-30,034.54-12,206.95

Finding the Fourth Proportional to 21,766.57, 30,034.54 and 12,206.95

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Solution

The fourth proportional to 21,766.57, 30,034.54 and 12,206.95 is: 16,843.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,766.57 : 30,034.54 = 12,206.95 : x
  2. Step 2: Convert to fraction form
    21,766.57/30,034.54 = 12,206.95/x
  3. Step 3: Cross multiply
    21,766.57x = 30,034.54 × 12,206.95
  4. Step 4: Simplify right side
    21,766.57x = 366,630,097.54
  5. Step 5: Solve for x
    x = 366,630,097.54/21,766.57
  6. Step 6: Final answer
    x = 16,843.72

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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.