Home / 28,815.03-43,222.59-18,998.16

Finding the Fourth Proportional to 28,815.03, 43,222.59 and 18,998.16

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Solution

The fourth proportional to 28,815.03, 43,222.59 and 18,998.16 is: 28,497.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,815.03 : 43,222.59 = 18,998.16 : x
  2. Step 2: Convert to fraction form
    28,815.03/43,222.59 = 18,998.16/x
  3. Step 3: Cross multiply
    28,815.03x = 43,222.59 × 18,998.16
  4. Step 4: Simplify right side
    28,815.03x = 821,149,680.43
  5. Step 5: Solve for x
    x = 821,149,680.43/28,815.03
  6. Step 6: Final answer
    x = 28,497.27

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Similar ratio
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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.