Home / 28,812.38-43,235.57-12,171.33

Finding the Fourth Proportional to 28,812.38, 43,235.57 and 12,171.33

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Solution

The fourth proportional to 28,812.38, 43,235.57 and 12,171.33 is: 18,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,812.38 : 43,235.57 = 12,171.33 : x
  2. Step 2: Convert to fraction form
    28,812.38/43,235.57 = 12,171.33/x
  3. Step 3: Cross multiply
    28,812.38x = 43,235.57 × 12,171.33
  4. Step 4: Simplify right side
    28,812.38x = 526,234,420.64
  5. Step 5: Solve for x
    x = 526,234,420.64/28,812.38
  6. Step 6: Final answer
    x = 18,264.18

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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.