Home / 21,926.84-30,261.62-21,237.94

Finding the Fourth Proportional to 21,926.84, 30,261.62 and 21,237.94

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Solution

The fourth proportional to 21,926.84, 30,261.62 and 21,237.94 is: 29,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,926.84 : 30,261.62 = 21,237.94 : x
  2. Step 2: Convert to fraction form
    21,926.84/30,261.62 = 21,237.94/x
  3. Step 3: Cross multiply
    21,926.84x = 30,261.62 × 21,237.94
  4. Step 4: Simplify right side
    21,926.84x = 642,694,469.86
  5. Step 5: Solve for x
    x = 642,694,469.86/21,926.84
  6. Step 6: Final answer
    x = 29,310.86

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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.