Home / 20,523.21-30,784.83-4,940.84

Finding the Fourth Proportional to 20,523.21, 30,784.83 and 4,940.84

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Solution

The fourth proportional to 20,523.21, 30,784.83 and 4,940.84 is: 7,411.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.21 : 30,784.83 = 4,940.84 : x
  2. Step 2: Convert to fraction form
    20,523.21/30,784.83 = 4,940.84/x
  3. Step 3: Cross multiply
    20,523.21x = 30,784.83 × 4,940.84
  4. Step 4: Simplify right side
    20,523.21x = 152,102,765.53
  5. Step 5: Solve for x
    x = 152,102,765.53/20,523.21
  6. Step 6: Final answer
    x = 7,411.26

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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.