Home / 20,255.72-30,394.25-10,395

Finding the Fourth Proportional to 20,255.72, 30,394.25 and 10,395

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Solution

The fourth proportional to 20,255.72, 30,394.25 and 10,395 is: 15,597.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.72 : 30,394.25 = 10,395 : x
  2. Step 2: Convert to fraction form
    20,255.72/30,394.25 = 10,395/x
  3. Step 3: Cross multiply
    20,255.72x = 30,394.25 × 10,395
  4. Step 4: Simplify right side
    20,255.72x = 315,948,228.75
  5. Step 5: Solve for x
    x = 315,948,228.75/20,255.72
  6. Step 6: Final answer
    x = 15,597.98

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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.