Home / 21,858.09-32,809.92-19,375.05

Finding the Fourth Proportional to 21,858.09, 32,809.92 and 19,375.05

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Solution

The fourth proportional to 21,858.09, 32,809.92 and 19,375.05 is: 29,082.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,858.09 : 32,809.92 = 19,375.05 : x
  2. Step 2: Convert to fraction form
    21,858.09/32,809.92 = 19,375.05/x
  3. Step 3: Cross multiply
    21,858.09x = 32,809.92 × 19,375.05
  4. Step 4: Simplify right side
    21,858.09x = 635,693,840.50
  5. Step 5: Solve for x
    x = 635,693,840.50/21,858.09
  6. Step 6: Final answer
    x = 29,082.77

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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.