Home / 20,873.40-31,314.96-6,833.38

Finding the Fourth Proportional to 20,873.40, 31,314.96 and 6,833.38

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Solution

The fourth proportional to 20,873.40, 31,314.96 and 6,833.38 is: 10,251.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.40 : 31,314.96 = 6,833.38 : x
  2. Step 2: Convert to fraction form
    20,873.40/31,314.96 = 6,833.38/x
  3. Step 3: Cross multiply
    20,873.40x = 31,314.96 × 6,833.38
  4. Step 4: Simplify right side
    20,873.40x = 213,987,021.36
  5. Step 5: Solve for x
    x = 213,987,021.36/20,873.40
  6. Step 6: Final answer
    x = 10,251.66

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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.