Home / 20,895.58-31,321.35-6,851.94

Finding the Fourth Proportional to 20,895.58, 31,321.35 and 6,851.94

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Solution

The fourth proportional to 20,895.58, 31,321.35 and 6,851.94 is: 10,270.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.58 : 31,321.35 = 6,851.94 : x
  2. Step 2: Convert to fraction form
    20,895.58/31,321.35 = 6,851.94/x
  3. Step 3: Cross multiply
    20,895.58x = 31,321.35 × 6,851.94
  4. Step 4: Simplify right side
    20,895.58x = 214,612,010.92
  5. Step 5: Solve for x
    x = 214,612,010.92/20,895.58
  6. Step 6: Final answer
    x = 10,270.69

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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.