Home / 20,180.75-30,271.53-6,329.75

Finding the Fourth Proportional to 20,180.75, 30,271.53 and 6,329.75

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Solution

The fourth proportional to 20,180.75, 30,271.53 and 6,329.75 is: 9,494.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.75 : 30,271.53 = 6,329.75 : x
  2. Step 2: Convert to fraction form
    20,180.75/30,271.53 = 6,329.75/x
  3. Step 3: Cross multiply
    20,180.75x = 30,271.53 × 6,329.75
  4. Step 4: Simplify right side
    20,180.75x = 191,611,217.02
  5. Step 5: Solve for x
    x = 191,611,217.02/20,180.75
  6. Step 6: Final answer
    x = 9,494.75

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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.