Home / 20,504.26-28,295.88-11,072.82

Finding the Fourth Proportional to 20,504.26, 28,295.88 and 11,072.82

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Solution

The fourth proportional to 20,504.26, 28,295.88 and 11,072.82 is: 15,280.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.26 : 28,295.88 = 11,072.82 : x
  2. Step 2: Convert to fraction form
    20,504.26/28,295.88 = 11,072.82/x
  3. Step 3: Cross multiply
    20,504.26x = 28,295.88 × 11,072.82
  4. Step 4: Simplify right side
    20,504.26x = 313,315,312.85
  5. Step 5: Solve for x
    x = 313,315,312.85/20,504.26
  6. Step 6: Final answer
    x = 15,280.50

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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.