Home / 20,623.33-28,458.84-11,671.75

Finding the Fourth Proportional to 20,623.33, 28,458.84 and 11,671.75

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Solution

The fourth proportional to 20,623.33, 28,458.84 and 11,671.75 is: 16,106.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.33 : 28,458.84 = 11,671.75 : x
  2. Step 2: Convert to fraction form
    20,623.33/28,458.84 = 11,671.75/x
  3. Step 3: Cross multiply
    20,623.33x = 28,458.84 × 11,671.75
  4. Step 4: Simplify right side
    20,623.33x = 332,164,465.77
  5. Step 5: Solve for x
    x = 332,164,465.77/20,623.33
  6. Step 6: Final answer
    x = 16,106.25

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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.