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Finding the Fourth Proportional to 20,358.99, 30,537.04 and 6,318.68

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Solution

The fourth proportional to 20,358.99, 30,537.04 and 6,318.68 is: 9,477.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.99 : 30,537.04 = 6,318.68 : x
  2. Step 2: Convert to fraction form
    20,358.99/30,537.04 = 6,318.68/x
  3. Step 3: Cross multiply
    20,358.99x = 30,537.04 × 6,318.68
  4. Step 4: Simplify right side
    20,358.99x = 192,953,615.43
  5. Step 5: Solve for x
    x = 192,953,615.43/20,358.99
  6. Step 6: Final answer
    x = 9,477.56

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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.