Home / 20,154.30-30,245.22-7,006.56

Finding the Fourth Proportional to 20,154.30, 30,245.22 and 7,006.56

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Solution

The fourth proportional to 20,154.30, 30,245.22 and 7,006.56 is: 10,514.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.30 : 30,245.22 = 7,006.56 : x
  2. Step 2: Convert to fraction form
    20,154.30/30,245.22 = 7,006.56/x
  3. Step 3: Cross multiply
    20,154.30x = 30,245.22 × 7,006.56
  4. Step 4: Simplify right side
    20,154.30x = 211,914,948.64
  5. Step 5: Solve for x
    x = 211,914,948.64/20,154.30
  6. Step 6: Final answer
    x = 10,514.63

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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.