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Finding the Fourth Proportional to 36,482.20, 54,682.80 and 14,288.20

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Solution

The fourth proportional to 36,482.20, 54,682.80 and 14,288.20 is: 21,416.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,482.20 : 54,682.80 = 14,288.20 : x
  2. Step 2: Convert to fraction form
    36,482.20/54,682.80 = 14,288.20/x
  3. Step 3: Cross multiply
    36,482.20x = 54,682.80 × 14,288.20
  4. Step 4: Simplify right side
    36,482.20x = 781,318,782.96
  5. Step 5: Solve for x
    x = 781,318,782.96/36,482.20
  6. Step 6: Final answer
    x = 21,416.44

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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.