Home / 20,016.72-30,028.32-6,869.52

Finding the Fourth Proportional to 20,016.72, 30,028.32 and 6,869.52

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Solution

The fourth proportional to 20,016.72, 30,028.32 and 6,869.52 is: 10,305.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,016.72 : 30,028.32 = 6,869.52 : x
  2. Step 2: Convert to fraction form
    20,016.72/30,028.32 = 6,869.52/x
  3. Step 3: Cross multiply
    20,016.72x = 30,028.32 × 6,869.52
  4. Step 4: Simplify right side
    20,016.72x = 206,280,144.81
  5. Step 5: Solve for x
    x = 206,280,144.81/20,016.72
  6. Step 6: Final answer
    x = 10,305.39

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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.