Home / 20,708.58-28,576.94-11,755.92

Finding the Fourth Proportional to 20,708.58, 28,576.94 and 11,755.92

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Solution

The fourth proportional to 20,708.58, 28,576.94 and 11,755.92 is: 16,222.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.58 : 28,576.94 = 11,755.92 : x
  2. Step 2: Convert to fraction form
    20,708.58/28,576.94 = 11,755.92/x
  3. Step 3: Cross multiply
    20,708.58x = 28,576.94 × 11,755.92
  4. Step 4: Simplify right side
    20,708.58x = 335,948,220.48
  5. Step 5: Solve for x
    x = 335,948,220.48/20,708.58
  6. Step 6: Final answer
    x = 16,222.66

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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.