Home / 21,540.82-32,256.12-19,543.36

Finding the Fourth Proportional to 21,540.82, 32,256.12 and 19,543.36

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Solution

The fourth proportional to 21,540.82, 32,256.12 and 19,543.36 is: 29,265.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.82 : 32,256.12 = 19,543.36 : x
  2. Step 2: Convert to fraction form
    21,540.82/32,256.12 = 19,543.36/x
  3. Step 3: Cross multiply
    21,540.82x = 32,256.12 × 19,543.36
  4. Step 4: Simplify right side
    21,540.82x = 630,392,965.36
  5. Step 5: Solve for x
    x = 630,392,965.36/21,540.82
  6. Step 6: Final answer
    x = 29,265.04

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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.