Home / 21,789.72-32,690.25-6,208.56

Finding the Fourth Proportional to 21,789.72, 32,690.25 and 6,208.56

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Solution

The fourth proportional to 21,789.72, 32,690.25 and 6,208.56 is: 9,314.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789.72 : 32,690.25 = 6,208.56 : x
  2. Step 2: Convert to fraction form
    21,789.72/32,690.25 = 6,208.56/x
  3. Step 3: Cross multiply
    21,789.72x = 32,690.25 × 6,208.56
  4. Step 4: Simplify right side
    21,789.72x = 202,959,378.54
  5. Step 5: Solve for x
    x = 202,959,378.54/21,789.72
  6. Step 6: Final answer
    x = 9,314.46

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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.