Home / 20,007.76-30,003.33-7,521.34

Finding the Fourth Proportional to 20,007.76, 30,003.33 and 7,521.34

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Solution

The fourth proportional to 20,007.76, 30,003.33 and 7,521.34 is: 11,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.76 : 30,003.33 = 7,521.34 : x
  2. Step 2: Convert to fraction form
    20,007.76/30,003.33 = 7,521.34/x
  3. Step 3: Cross multiply
    20,007.76x = 30,003.33 × 7,521.34
  4. Step 4: Simplify right side
    20,007.76x = 225,665,096.05
  5. Step 5: Solve for x
    x = 225,665,096.05/20,007.76
  6. Step 6: Final answer
    x = 11,278.88

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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.