Home / 21,869.54-30,194.50-16,824.86

Finding the Fourth Proportional to 21,869.54, 30,194.50 and 16,824.86

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Solution

The fourth proportional to 21,869.54, 30,194.50 and 16,824.86 is: 23,229.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,869.54 : 30,194.50 = 16,824.86 : x
  2. Step 2: Convert to fraction form
    21,869.54/30,194.50 = 16,824.86/x
  3. Step 3: Cross multiply
    21,869.54x = 30,194.50 × 16,824.86
  4. Step 4: Simplify right side
    21,869.54x = 508,018,309.54
  5. Step 5: Solve for x
    x = 508,018,309.54/21,869.54
  6. Step 6: Final answer
    x = 23,229.49

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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.