Home / 21,905.21-32,857.33-6,109.82

Finding the Fourth Proportional to 21,905.21, 32,857.33 and 6,109.82

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Solution

The fourth proportional to 21,905.21, 32,857.33 and 6,109.82 is: 9,164.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905.21 : 32,857.33 = 6,109.82 : x
  2. Step 2: Convert to fraction form
    21,905.21/32,857.33 = 6,109.82/x
  3. Step 3: Cross multiply
    21,905.21x = 32,857.33 × 6,109.82
  4. Step 4: Simplify right side
    21,905.21x = 200,752,371.98
  5. Step 5: Solve for x
    x = 200,752,371.98/21,905.21
  6. Step 6: Final answer
    x = 9,164.59

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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.