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Finding the Fourth Proportional to 30,534.82, 45,794.87 and 12,755.88

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Solution

The fourth proportional to 30,534.82, 45,794.87 and 12,755.88 is: 19,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,534.82 : 45,794.87 = 12,755.88 : x
  2. Step 2: Convert to fraction form
    30,534.82/45,794.87 = 12,755.88/x
  3. Step 3: Cross multiply
    30,534.82x = 45,794.87 × 12,755.88
  4. Step 4: Simplify right side
    30,534.82x = 584,153,850.39
  5. Step 5: Solve for x
    x = 584,153,850.39/30,534.82
  6. Step 6: Final answer
    x = 19,130.74

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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.