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Finding the Fourth Proportional to 30,991.88, 46,480.84 and 8,804.76

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Solution

The fourth proportional to 30,991.88, 46,480.84 and 8,804.76 is: 13,205.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,991.88 : 46,480.84 = 8,804.76 : x
  2. Step 2: Convert to fraction form
    30,991.88/46,480.84 = 8,804.76/x
  3. Step 3: Cross multiply
    30,991.88x = 46,480.84 × 8,804.76
  4. Step 4: Simplify right side
    30,991.88x = 409,252,640.80
  5. Step 5: Solve for x
    x = 409,252,640.80/30,991.88
  6. Step 6: Final answer
    x = 13,205.16

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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.