Home / 20,975.58-31,459.91-6,181.04

Finding the Fourth Proportional to 20,975.58, 31,459.91 and 6,181.04

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Solution

The fourth proportional to 20,975.58, 31,459.91 and 6,181.04 is: 9,270.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,975.58 : 31,459.91 = 6,181.04 : x
  2. Step 2: Convert to fraction form
    20,975.58/31,459.91 = 6,181.04/x
  3. Step 3: Cross multiply
    20,975.58x = 31,459.91 × 6,181.04
  4. Step 4: Simplify right side
    20,975.58x = 194,454,872.20
  5. Step 5: Solve for x
    x = 194,454,872.20/20,975.58
  6. Step 6: Final answer
    x = 9,270.54

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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.