Home / 20,163.47-30,247.02-10,311.03

Finding the Fourth Proportional to 20,163.47, 30,247.02 and 10,311.03

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Solution

The fourth proportional to 20,163.47, 30,247.02 and 10,311.03 is: 15,467.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.47 : 30,247.02 = 10,311.03 : x
  2. Step 2: Convert to fraction form
    20,163.47/30,247.02 = 10,311.03/x
  3. Step 3: Cross multiply
    20,163.47x = 30,247.02 × 10,311.03
  4. Step 4: Simplify right side
    20,163.47x = 311,877,930.63
  5. Step 5: Solve for x
    x = 311,877,930.63/20,163.47
  6. Step 6: Final answer
    x = 15,467.48

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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.