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Finding the Fourth Proportional to 30,093.64, 45,140.14 and 11,612.68

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Solution

The fourth proportional to 30,093.64, 45,140.14 and 11,612.68 is: 17,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,093.64 : 45,140.14 = 11,612.68 : x
  2. Step 2: Convert to fraction form
    30,093.64/45,140.14 = 11,612.68/x
  3. Step 3: Cross multiply
    30,093.64x = 45,140.14 × 11,612.68
  4. Step 4: Simplify right side
    30,093.64x = 524,198,000.98
  5. Step 5: Solve for x
    x = 524,198,000.98/30,093.64
  6. Step 6: Final answer
    x = 17,418.90

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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.