Home / 21,951.05-30,270.87-21,600.44

Finding the Fourth Proportional to 21,951.05, 30,270.87 and 21,600.44

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Solution

The fourth proportional to 21,951.05, 30,270.87 and 21,600.44 is: 29,787.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,951.05 : 30,270.87 = 21,600.44 : x
  2. Step 2: Convert to fraction form
    21,951.05/30,270.87 = 21,600.44/x
  3. Step 3: Cross multiply
    21,951.05x = 30,270.87 × 21,600.44
  4. Step 4: Simplify right side
    21,951.05x = 653,863,959.83
  5. Step 5: Solve for x
    x = 653,863,959.83/21,951.05
  6. Step 6: Final answer
    x = 29,787.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.