Home / 21,618.80-32,418.02-11,093.86

Finding the Fourth Proportional to 21,618.80, 32,418.02 and 11,093.86

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Solution

The fourth proportional to 21,618.80, 32,418.02 and 11,093.86 is: 16,635.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.80 : 32,418.02 = 11,093.86 : x
  2. Step 2: Convert to fraction form
    21,618.80/32,418.02 = 11,093.86/x
  3. Step 3: Cross multiply
    21,618.80x = 32,418.02 × 11,093.86
  4. Step 4: Simplify right side
    21,618.80x = 359,641,043.61
  5. Step 5: Solve for x
    x = 359,641,043.61/21,618.80
  6. Step 6: Final answer
    x = 16,635.57

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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.