Home / 20,424.08-30,628.23-7,942.42

Finding the Fourth Proportional to 20,424.08, 30,628.23 and 7,942.42

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Solution

The fourth proportional to 20,424.08, 30,628.23 and 7,942.42 is: 11,910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.08 : 30,628.23 = 7,942.42 : x
  2. Step 2: Convert to fraction form
    20,424.08/30,628.23 = 7,942.42/x
  3. Step 3: Cross multiply
    20,424.08x = 30,628.23 × 7,942.42
  4. Step 4: Simplify right side
    20,424.08x = 243,262,275.02
  5. Step 5: Solve for x
    x = 243,262,275.02/20,424.08
  6. Step 6: Final answer
    x = 11,910.56

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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.