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Finding the Fourth Proportional to 27,443.80, 41,208.90 and 15,779.80

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Solution

The fourth proportional to 27,443.80, 41,208.90 and 15,779.80 is: 23,694.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,443.80 : 41,208.90 = 15,779.80 : x
  2. Step 2: Convert to fraction form
    27,443.80/41,208.90 = 15,779.80/x
  3. Step 3: Cross multiply
    27,443.80x = 41,208.90 × 15,779.80
  4. Step 4: Simplify right side
    27,443.80x = 650,268,200.22
  5. Step 5: Solve for x
    x = 650,268,200.22/27,443.80
  6. Step 6: Final answer
    x = 23,694.54

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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.