Home / 27,145.22-40,671.08-21,219.80

Finding the Fourth Proportional to 27,145.22, 40,671.08 and 21,219.80

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Solution

The fourth proportional to 27,145.22, 40,671.08 and 21,219.80 is: 31,793.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,145.22 : 40,671.08 = 21,219.80 : x
  2. Step 2: Convert to fraction form
    27,145.22/40,671.08 = 21,219.80/x
  3. Step 3: Cross multiply
    27,145.22x = 40,671.08 × 21,219.80
  4. Step 4: Simplify right side
    27,145.22x = 863,032,183.38
  5. Step 5: Solve for x
    x = 863,032,183.38/27,145.22
  6. Step 6: Final answer
    x = 31,793.15

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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.