Home / 20,506.04-30,760.68-10,112.12

Finding the Fourth Proportional to 20,506.04, 30,760.68 and 10,112.12

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Solution

The fourth proportional to 20,506.04, 30,760.68 and 10,112.12 is: 15,168.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.04 : 30,760.68 = 10,112.12 : x
  2. Step 2: Convert to fraction form
    20,506.04/30,760.68 = 10,112.12/x
  3. Step 3: Cross multiply
    20,506.04x = 30,760.68 × 10,112.12
  4. Step 4: Simplify right side
    20,506.04x = 311,055,687.44
  5. Step 5: Solve for x
    x = 311,055,687.44/20,506.04
  6. Step 6: Final answer
    x = 15,168.98

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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.