Home / 20,205.75-27,876.35-11,704.77

Finding the Fourth Proportional to 20,205.75, 27,876.35 and 11,704.77

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Solution

The fourth proportional to 20,205.75, 27,876.35 and 11,704.77 is: 16,148.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.75 : 27,876.35 = 11,704.77 : x
  2. Step 2: Convert to fraction form
    20,205.75/27,876.35 = 11,704.77/x
  3. Step 3: Cross multiply
    20,205.75x = 27,876.35 × 11,704.77
  4. Step 4: Simplify right side
    20,205.75x = 326,286,294.45
  5. Step 5: Solve for x
    x = 326,286,294.45/20,205.75
  6. Step 6: Final answer
    x = 16,148.19

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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.