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Finding the Fourth Proportional to 36,311.30, 54,486.30 and 14,125.40

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Solution

The fourth proportional to 36,311.30, 54,486.30 and 14,125.40 is: 21,195.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,311.30 : 54,486.30 = 14,125.40 : x
  2. Step 2: Convert to fraction form
    36,311.30/54,486.30 = 14,125.40/x
  3. Step 3: Cross multiply
    36,311.30x = 54,486.30 × 14,125.40
  4. Step 4: Simplify right side
    36,311.30x = 769,640,782.02
  5. Step 5: Solve for x
    x = 769,640,782.02/36,311.30
  6. Step 6: Final answer
    x = 21,195.63

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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.