Home / 20,751.26-28,636.41-11,675.93

Finding the Fourth Proportional to 20,751.26, 28,636.41 and 11,675.93

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Solution

The fourth proportional to 20,751.26, 28,636.41 and 11,675.93 is: 16,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,751.26 : 28,636.41 = 11,675.93 : x
  2. Step 2: Convert to fraction form
    20,751.26/28,636.41 = 11,675.93/x
  3. Step 3: Cross multiply
    20,751.26x = 28,636.41 × 11,675.93
  4. Step 4: Simplify right side
    20,751.26x = 334,356,575.43
  5. Step 5: Solve for x
    x = 334,356,575.43/20,751.26
  6. Step 6: Final answer
    x = 16,112.60

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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.