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Finding the Fourth Proportional to 30,650.58, 45,963.85 and 11,928.13

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Solution

The fourth proportional to 30,650.58, 45,963.85 and 11,928.13 is: 17,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,650.58 : 45,963.85 = 11,928.13 : x
  2. Step 2: Convert to fraction form
    30,650.58/45,963.85 = 11,928.13/x
  3. Step 3: Cross multiply
    30,650.58x = 45,963.85 × 11,928.13
  4. Step 4: Simplify right side
    30,650.58x = 548,262,778.10
  5. Step 5: Solve for x
    x = 548,262,778.10/30,650.58
  6. Step 6: Final answer
    x = 17,887.52

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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.