Home / 27,986.80-41,955.90-16,881.70

Finding the Fourth Proportional to 27,986.80, 41,955.90 and 16,881.70

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Solution

The fourth proportional to 27,986.80, 41,955.90 and 16,881.70 is: 25,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986.80 : 41,955.90 = 16,881.70 : x
  2. Step 2: Convert to fraction form
    27,986.80/41,955.90 = 16,881.70/x
  3. Step 3: Cross multiply
    27,986.80x = 41,955.90 × 16,881.70
  4. Step 4: Simplify right side
    27,986.80x = 708,286,917.03
  5. Step 5: Solve for x
    x = 708,286,917.03/27,986.80
  6. Step 6: Final answer
    x = 25,307.89

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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.