Home / 28,817.42-43,239.47-12,181.32

Finding the Fourth Proportional to 28,817.42, 43,239.47 and 12,181.32

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Solution

The fourth proportional to 28,817.42, 43,239.47 and 12,181.32 is: 18,277.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,817.42 : 43,239.47 = 12,181.32 : x
  2. Step 2: Convert to fraction form
    28,817.42/43,239.47 = 12,181.32/x
  3. Step 3: Cross multiply
    28,817.42x = 43,239.47 × 12,181.32
  4. Step 4: Simplify right side
    28,817.42x = 526,713,759.79
  5. Step 5: Solve for x
    x = 526,713,759.79/28,817.42
  6. Step 6: Final answer
    x = 18,277.62

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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.