Home / 27,772.51-38,286.18-19,800.89

Finding the Fourth Proportional to 27,772.51, 38,286.18 and 19,800.89

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Solution

The fourth proportional to 27,772.51, 38,286.18 and 19,800.89 is: 27,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,772.51 : 38,286.18 = 19,800.89 : x
  2. Step 2: Convert to fraction form
    27,772.51/38,286.18 = 19,800.89/x
  3. Step 3: Cross multiply
    27,772.51x = 38,286.18 × 19,800.89
  4. Step 4: Simplify right side
    27,772.51x = 758,100,438.70
  5. Step 5: Solve for x
    x = 758,100,438.70/27,772.51
  6. Step 6: Final answer
    x = 27,296.79

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1.5x scale

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.