Home / 27,318.33-40,977.39-12,307.89

Finding the Fourth Proportional to 27,318.33, 40,977.39 and 12,307.89

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Solution

The fourth proportional to 27,318.33, 40,977.39 and 12,307.89 is: 18,461.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,318.33 : 40,977.39 = 12,307.89 : x
  2. Step 2: Convert to fraction form
    27,318.33/40,977.39 = 12,307.89/x
  3. Step 3: Cross multiply
    27,318.33x = 40,977.39 × 12,307.89
  4. Step 4: Simplify right side
    27,318.33x = 504,345,208.61
  5. Step 5: Solve for x
    x = 504,345,208.61/27,318.33
  6. Step 6: Final answer
    x = 18,461.79

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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.