Home / 18,590.36-27,881.43-5,443.75

Finding the Fourth Proportional to 18,590.36, 27,881.43 and 5,443.75

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Solution

The fourth proportional to 18,590.36, 27,881.43 and 5,443.75 is: 8,164.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.36 : 27,881.43 = 5,443.75 : x
  2. Step 2: Convert to fraction form
    18,590.36/27,881.43 = 5,443.75/x
  3. Step 3: Cross multiply
    18,590.36x = 27,881.43 × 5,443.75
  4. Step 4: Simplify right side
    18,590.36x = 151,779,589.83
  5. Step 5: Solve for x
    x = 151,779,589.83/18,590.36
  6. Step 6: Final answer
    x = 8,164.43

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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.