Home / 20,982.42-31,473.36-6,191.28

Finding the Fourth Proportional to 20,982.42, 31,473.36 and 6,191.28

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Solution

The fourth proportional to 20,982.42, 31,473.36 and 6,191.28 is: 9,286.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.42 : 31,473.36 = 6,191.28 : x
  2. Step 2: Convert to fraction form
    20,982.42/31,473.36 = 6,191.28/x
  3. Step 3: Cross multiply
    20,982.42x = 31,473.36 × 6,191.28
  4. Step 4: Simplify right side
    20,982.42x = 194,860,384.30
  5. Step 5: Solve for x
    x = 194,860,384.30/20,982.42
  6. Step 6: Final answer
    x = 9,286.84

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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.