Home / 20,873.70-31,315.69-6,082.75

Finding the Fourth Proportional to 20,873.70, 31,315.69 and 6,082.75

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Solution

The fourth proportional to 20,873.70, 31,315.69 and 6,082.75 is: 9,125.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.70 : 31,315.69 = 6,082.75 : x
  2. Step 2: Convert to fraction form
    20,873.70/31,315.69 = 6,082.75/x
  3. Step 3: Cross multiply
    20,873.70x = 31,315.69 × 6,082.75
  4. Step 4: Simplify right side
    20,873.70x = 190,485,513.35
  5. Step 5: Solve for x
    x = 190,485,513.35/20,873.70
  6. Step 6: Final answer
    x = 9,125.62

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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.