Home / 20,538.82-30,812.04-6,502.39

Finding the Fourth Proportional to 20,538.82, 30,812.04 and 6,502.39

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Solution

The fourth proportional to 20,538.82, 30,812.04 and 6,502.39 is: 9,754.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538.82 : 30,812.04 = 6,502.39 : x
  2. Step 2: Convert to fraction form
    20,538.82/30,812.04 = 6,502.39/x
  3. Step 3: Cross multiply
    20,538.82x = 30,812.04 × 6,502.39
  4. Step 4: Simplify right side
    20,538.82x = 200,351,900.78
  5. Step 5: Solve for x
    x = 200,351,900.78/20,538.82
  6. Step 6: Final answer
    x = 9,754.79

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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.