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Finding the Fourth Proportional to 30,648.39, 45,949.22 and 15,847.87

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Solution

The fourth proportional to 30,648.39, 45,949.22 and 15,847.87 is: 23,759.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,648.39 : 45,949.22 = 15,847.87 : x
  2. Step 2: Convert to fraction form
    30,648.39/45,949.22 = 15,847.87/x
  3. Step 3: Cross multiply
    30,648.39x = 45,949.22 × 15,847.87
  4. Step 4: Simplify right side
    30,648.39x = 728,197,265.16
  5. Step 5: Solve for x
    x = 728,197,265.16/30,648.39
  6. Step 6: Final answer
    x = 23,759.72

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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.