Home / 43,578.13-65,394.84-18,618.37

Finding the Fourth Proportional to 43,578.13, 65,394.84 and 18,618.37

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Solution

The fourth proportional to 43,578.13, 65,394.84 and 18,618.37 is: 27,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,578.13 : 65,394.84 = 18,618.37 : x
  2. Step 2: Convert to fraction form
    43,578.13/65,394.84 = 18,618.37/x
  3. Step 3: Cross multiply
    43,578.13x = 65,394.84 × 18,618.37
  4. Step 4: Simplify right side
    43,578.13x = 1,217,545,000.24
  5. Step 5: Solve for x
    x = 1,217,545,000.24/43,578.13
  6. Step 6: Final answer
    x = 27,939.36

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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.