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Finding the Fourth Proportional to 36,404.10, 54,606.15 and 21,605.40

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Solution

The fourth proportional to 36,404.10, 54,606.15 and 21,605.40 is: 32,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,404.10 : 54,606.15 = 21,605.40 : x
  2. Step 2: Convert to fraction form
    36,404.10/54,606.15 = 21,605.40/x
  3. Step 3: Cross multiply
    36,404.10x = 54,606.15 × 21,605.40
  4. Step 4: Simplify right side
    36,404.10x = 1,179,787,713.21
  5. Step 5: Solve for x
    x = 1,179,787,713.21/36,404.10
  6. Step 6: Final answer
    x = 32,408.10

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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.