Home / 20,696.95-28,564.22-11,623.80

Finding the Fourth Proportional to 20,696.95, 28,564.22 and 11,623.80

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Solution

The fourth proportional to 20,696.95, 28,564.22 and 11,623.80 is: 16,042.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.95 : 28,564.22 = 11,623.80 : x
  2. Step 2: Convert to fraction form
    20,696.95/28,564.22 = 11,623.80/x
  3. Step 3: Cross multiply
    20,696.95x = 28,564.22 × 11,623.80
  4. Step 4: Simplify right side
    20,696.95x = 332,024,780.44
  5. Step 5: Solve for x
    x = 332,024,780.44/20,696.95
  6. Step 6: Final answer
    x = 16,042.21

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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.