Home / 28,121.33-38,808.86-16,186.39

Finding the Fourth Proportional to 28,121.33, 38,808.86 and 16,186.39

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Solution

The fourth proportional to 28,121.33, 38,808.86 and 16,186.39 is: 22,338.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121.33 : 38,808.86 = 16,186.39 : x
  2. Step 2: Convert to fraction form
    28,121.33/38,808.86 = 16,186.39/x
  3. Step 3: Cross multiply
    28,121.33x = 38,808.86 × 16,186.39
  4. Step 4: Simplify right side
    28,121.33x = 628,175,165.46
  5. Step 5: Solve for x
    x = 628,175,165.46/28,121.33
  6. Step 6: Final answer
    x = 22,338.03

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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.