Home / 20,017.75-30,016.42-6,685.94

Finding the Fourth Proportional to 20,017.75, 30,016.42 and 6,685.94

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Solution

The fourth proportional to 20,017.75, 30,016.42 and 6,685.94 is: 10,025.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.75 : 30,016.42 = 6,685.94 : x
  2. Step 2: Convert to fraction form
    20,017.75/30,016.42 = 6,685.94/x
  3. Step 3: Cross multiply
    20,017.75x = 30,016.42 × 6,685.94
  4. Step 4: Simplify right side
    20,017.75x = 200,688,079.07
  5. Step 5: Solve for x
    x = 200,688,079.07/20,017.75
  6. Step 6: Final answer
    x = 10,025.51

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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.