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Finding the Fourth Proportional to 20,163.58, 30,254.04 and 7,008.79

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Solution

The fourth proportional to 20,163.58, 30,254.04 and 7,008.79 is: 10,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.58 : 30,254.04 = 7,008.79 : x
  2. Step 2: Convert to fraction form
    20,163.58/30,254.04 = 7,008.79/x
  3. Step 3: Cross multiply
    20,163.58x = 30,254.04 × 7,008.79
  4. Step 4: Simplify right side
    20,163.58x = 212,044,213.01
  5. Step 5: Solve for x
    x = 212,044,213.01/20,163.58
  6. Step 6: Final answer
    x = 10,516.20

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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.