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Finding the Fourth Proportional to 30,609.03, 45,815.12 and 15,797.78

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Solution

The fourth proportional to 30,609.03, 45,815.12 and 15,797.78 is: 23,645.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,609.03 : 45,815.12 = 15,797.78 : x
  2. Step 2: Convert to fraction form
    30,609.03/45,815.12 = 15,797.78/x
  3. Step 3: Cross multiply
    30,609.03x = 45,815.12 × 15,797.78
  4. Step 4: Simplify right side
    30,609.03x = 723,777,186.43
  5. Step 5: Solve for x
    x = 723,777,186.43/30,609.03
  6. Step 6: Final answer
    x = 23,645.87

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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.