Home / 28,811.54-43,223.39-12,181.84

Finding the Fourth Proportional to 28,811.54, 43,223.39 and 12,181.84

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Solution

The fourth proportional to 28,811.54, 43,223.39 and 12,181.84 is: 18,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,811.54 : 43,223.39 = 12,181.84 : x
  2. Step 2: Convert to fraction form
    28,811.54/43,223.39 = 12,181.84/x
  3. Step 3: Cross multiply
    28,811.54x = 43,223.39 × 12,181.84
  4. Step 4: Simplify right side
    28,811.54x = 526,540,421.24
  5. Step 5: Solve for x
    x = 526,540,421.24/28,811.54
  6. Step 6: Final answer
    x = 18,275.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.