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Finding the Fourth Proportional to 43,482.95, 65,249.04 and 18,520.40

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Solution

The fourth proportional to 43,482.95, 65,249.04 and 18,520.40 is: 27,791.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,482.95 : 65,249.04 = 18,520.40 : x
  2. Step 2: Convert to fraction form
    43,482.95/65,249.04 = 18,520.40/x
  3. Step 3: Cross multiply
    43,482.95x = 65,249.04 × 18,520.40
  4. Step 4: Simplify right side
    43,482.95x = 1,208,438,552.99
  5. Step 5: Solve for x
    x = 1,208,438,552.99/43,482.95
  6. Step 6: Final answer
    x = 27,791.09

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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.