Home / 20,621.58-30,936.21-9,520.93

Finding the Fourth Proportional to 20,621.58, 30,936.21 and 9,520.93

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Solution

The fourth proportional to 20,621.58, 30,936.21 and 9,520.93 is: 14,283.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,621.58 : 30,936.21 = 9,520.93 : x
  2. Step 2: Convert to fraction form
    20,621.58/30,936.21 = 9,520.93/x
  3. Step 3: Cross multiply
    20,621.58x = 30,936.21 × 9,520.93
  4. Step 4: Simplify right side
    20,621.58x = 294,541,489.88
  5. Step 5: Solve for x
    x = 294,541,489.88/20,621.58
  6. Step 6: Final answer
    x = 14,283.17

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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.