Home / 20,719.14-31,057.90-6,668.84

Finding the Fourth Proportional to 20,719.14, 31,057.90 and 6,668.84

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Solution

The fourth proportional to 20,719.14, 31,057.90 and 6,668.84 is: 9,996.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,719.14 : 31,057.90 = 6,668.84 : x
  2. Step 2: Convert to fraction form
    20,719.14/31,057.90 = 6,668.84/x
  3. Step 3: Cross multiply
    20,719.14x = 31,057.90 × 6,668.84
  4. Step 4: Simplify right side
    20,719.14x = 207,120,226.81
  5. Step 5: Solve for x
    x = 207,120,226.81/20,719.14
  6. Step 6: Final answer
    x = 9,996.57

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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.