Home / 20,329.58-30,486.78-6,998.81

Finding the Fourth Proportional to 20,329.58, 30,486.78 and 6,998.81

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Solution

The fourth proportional to 20,329.58, 30,486.78 and 6,998.81 is: 10,495.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.58 : 30,486.78 = 6,998.81 : x
  2. Step 2: Convert to fraction form
    20,329.58/30,486.78 = 6,998.81/x
  3. Step 3: Cross multiply
    20,329.58x = 30,486.78 × 6,998.81
  4. Step 4: Simplify right side
    20,329.58x = 213,371,028.30
  5. Step 5: Solve for x
    x = 213,371,028.30/20,329.58
  6. Step 6: Final answer
    x = 10,495.59

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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.