Home / 20,197.88-30,297.35-6,870.84

Finding the Fourth Proportional to 20,197.88, 30,297.35 and 6,870.84

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Solution

The fourth proportional to 20,197.88, 30,297.35 and 6,870.84 is: 10,306.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.88 : 30,297.35 = 6,870.84 : x
  2. Step 2: Convert to fraction form
    20,197.88/30,297.35 = 6,870.84/x
  3. Step 3: Cross multiply
    20,197.88x = 30,297.35 × 6,870.84
  4. Step 4: Simplify right side
    20,197.88x = 208,168,375.07
  5. Step 5: Solve for x
    x = 208,168,375.07/20,197.88
  6. Step 6: Final answer
    x = 10,306.45

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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.