Home / 21,512.44-32,274.42-19,456.12

Finding the Fourth Proportional to 21,512.44, 32,274.42 and 19,456.12

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Solution

The fourth proportional to 21,512.44, 32,274.42 and 19,456.12 is: 29,189.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,512.44 : 32,274.42 = 19,456.12 : x
  2. Step 2: Convert to fraction form
    21,512.44/32,274.42 = 19,456.12/x
  3. Step 3: Cross multiply
    21,512.44x = 32,274.42 × 19,456.12
  4. Step 4: Simplify right side
    21,512.44x = 627,934,988.45
  5. Step 5: Solve for x
    x = 627,934,988.45/21,512.44
  6. Step 6: Final answer
    x = 29,189.39

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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.