Home / 20,706.33-28,577.71-11,751.94

Finding the Fourth Proportional to 20,706.33, 28,577.71 and 11,751.94

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Solution

The fourth proportional to 20,706.33, 28,577.71 and 11,751.94 is: 16,219.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,706.33 : 28,577.71 = 11,751.94 : x
  2. Step 2: Convert to fraction form
    20,706.33/28,577.71 = 11,751.94/x
  3. Step 3: Cross multiply
    20,706.33x = 28,577.71 × 11,751.94
  4. Step 4: Simplify right side
    20,706.33x = 335,843,422.92
  5. Step 5: Solve for x
    x = 335,843,422.92/20,706.33
  6. Step 6: Final answer
    x = 16,219.36

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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.