Home / 20,162.35-30,181.56-12,741.13

Finding the Fourth Proportional to 20,162.35, 30,181.56 and 12,741.13

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Solution

The fourth proportional to 20,162.35, 30,181.56 and 12,741.13 is: 19,072.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.35 : 30,181.56 = 12,741.13 : x
  2. Step 2: Convert to fraction form
    20,162.35/30,181.56 = 12,741.13/x
  3. Step 3: Cross multiply
    20,162.35x = 30,181.56 × 12,741.13
  4. Step 4: Simplify right side
    20,162.35x = 384,547,179.56
  5. Step 5: Solve for x
    x = 384,547,179.56/20,162.35
  6. Step 6: Final answer
    x = 19,072.54

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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.