Home / 25,982.58-38,975.26-8,211.89

Finding the Fourth Proportional to 25,982.58, 38,975.26 and 8,211.89

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Solution

The fourth proportional to 25,982.58, 38,975.26 and 8,211.89 is: 12,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,982.58 : 38,975.26 = 8,211.89 : x
  2. Step 2: Convert to fraction form
    25,982.58/38,975.26 = 8,211.89/x
  3. Step 3: Cross multiply
    25,982.58x = 38,975.26 × 8,211.89
  4. Step 4: Simplify right side
    25,982.58x = 320,060,547.84
  5. Step 5: Solve for x
    x = 320,060,547.84/25,982.58
  6. Step 6: Final answer
    x = 12,318.27

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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.