Home / 28,812.88-43,236.33-12,171.83

Finding the Fourth Proportional to 28,812.88, 43,236.33 and 12,171.83

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Solution

The fourth proportional to 28,812.88, 43,236.33 and 12,171.83 is: 18,264.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,812.88 : 43,236.33 = 12,171.83 : x
  2. Step 2: Convert to fraction form
    28,812.88/43,236.33 = 12,171.83/x
  3. Step 3: Cross multiply
    28,812.88x = 43,236.33 × 12,171.83
  4. Step 4: Simplify right side
    28,812.88x = 526,265,197.72
  5. Step 5: Solve for x
    x = 526,265,197.72/28,812.88
  6. Step 6: Final answer
    x = 18,264.93

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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.