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Finding the Fourth Proportional to 36,401.10, 54,601.65 and 14,215.20

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Solution

The fourth proportional to 36,401.10, 54,601.65 and 14,215.20 is: 21,322.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,401.10 : 54,601.65 = 14,215.20 : x
  2. Step 2: Convert to fraction form
    36,401.10/54,601.65 = 14,215.20/x
  3. Step 3: Cross multiply
    36,401.10x = 54,601.65 × 14,215.20
  4. Step 4: Simplify right side
    36,401.10x = 776,173,375.08
  5. Step 5: Solve for x
    x = 776,173,375.08/36,401.10
  6. Step 6: Final answer
    x = 21,322.80

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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.