Home / 20,315.40-30,473.84-5,524.73

Finding the Fourth Proportional to 20,315.40, 30,473.84 and 5,524.73

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Solution

The fourth proportional to 20,315.40, 30,473.84 and 5,524.73 is: 8,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,315.40 : 30,473.84 = 5,524.73 : x
  2. Step 2: Convert to fraction form
    20,315.40/30,473.84 = 5,524.73/x
  3. Step 3: Cross multiply
    20,315.40x = 30,473.84 × 5,524.73
  4. Step 4: Simplify right side
    20,315.40x = 168,359,738.06
  5. Step 5: Solve for x
    x = 168,359,738.06/20,315.40
  6. Step 6: Final answer
    x = 8,287.30

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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.