Home / 20,833.96-31,240.30-6,784.96

Finding the Fourth Proportional to 20,833.96, 31,240.30 and 6,784.96

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Solution

The fourth proportional to 20,833.96, 31,240.30 and 6,784.96 is: 10,173.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.96 : 31,240.30 = 6,784.96 : x
  2. Step 2: Convert to fraction form
    20,833.96/31,240.30 = 6,784.96/x
  3. Step 3: Cross multiply
    20,833.96x = 31,240.30 × 6,784.96
  4. Step 4: Simplify right side
    20,833.96x = 211,964,185.89
  5. Step 5: Solve for x
    x = 211,964,185.89/20,833.96
  6. Step 6: Final answer
    x = 10,173.97

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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.