Home / 20,673.32-30,974.31-11,320.07

Finding the Fourth Proportional to 20,673.32, 30,974.31 and 11,320.07

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Solution

The fourth proportional to 20,673.32, 30,974.31 and 11,320.07 is: 16,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.32 : 30,974.31 = 11,320.07 : x
  2. Step 2: Convert to fraction form
    20,673.32/30,974.31 = 11,320.07/x
  3. Step 3: Cross multiply
    20,673.32x = 30,974.31 × 11,320.07
  4. Step 4: Simplify right side
    20,673.32x = 350,631,202.53
  5. Step 5: Solve for x
    x = 350,631,202.53/20,673.32
  6. Step 6: Final answer
    x = 16,960.57

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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.