Home / 20,020.10-30,030.76-6,872.32

Finding the Fourth Proportional to 20,020.10, 30,030.76 and 6,872.32

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Solution

The fourth proportional to 20,020.10, 30,030.76 and 6,872.32 is: 10,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.10 : 30,030.76 = 6,872.32 : x
  2. Step 2: Convert to fraction form
    20,020.10/30,030.76 = 6,872.32/x
  3. Step 3: Cross multiply
    20,020.10x = 30,030.76 × 6,872.32
  4. Step 4: Simplify right side
    20,020.10x = 206,380,992.56
  5. Step 5: Solve for x
    x = 206,380,992.56/20,020.10
  6. Step 6: Final answer
    x = 10,308.69

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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.