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Finding the Fourth Proportional to 30,993.57, 46,490.72 and 8,806.91

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Solution

The fourth proportional to 30,993.57, 46,490.72 and 8,806.91 is: 13,210.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,993.57 : 46,490.72 = 8,806.91 : x
  2. Step 2: Convert to fraction form
    30,993.57/46,490.72 = 8,806.91/x
  3. Step 3: Cross multiply
    30,993.57x = 46,490.72 × 8,806.91
  4. Step 4: Simplify right side
    30,993.57x = 409,439,310.39
  5. Step 5: Solve for x
    x = 409,439,310.39/30,993.57
  6. Step 6: Final answer
    x = 13,210.46

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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.