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Finding the Fourth Proportional to 36,640.40, 54,949.80 and 14,446.40

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Solution

The fourth proportional to 36,640.40, 54,949.80 and 14,446.40 is: 21,665.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,640.40 : 54,949.80 = 14,446.40 : x
  2. Step 2: Convert to fraction form
    36,640.40/54,949.80 = 14,446.40/x
  3. Step 3: Cross multiply
    36,640.40x = 54,949.80 × 14,446.40
  4. Step 4: Simplify right side
    36,640.40x = 793,826,790.72
  5. Step 5: Solve for x
    x = 793,826,790.72/36,640.40
  6. Step 6: Final answer
    x = 21,665.34

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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.