Home / 27,729.38-38,273.34-15,799.76

Finding the Fourth Proportional to 27,729.38, 38,273.34 and 15,799.76

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Solution

The fourth proportional to 27,729.38, 38,273.34 and 15,799.76 is: 21,807.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,729.38 : 38,273.34 = 15,799.76 : x
  2. Step 2: Convert to fraction form
    27,729.38/38,273.34 = 15,799.76/x
  3. Step 3: Cross multiply
    27,729.38x = 38,273.34 × 15,799.76
  4. Step 4: Simplify right side
    27,729.38x = 604,709,586.40
  5. Step 5: Solve for x
    x = 604,709,586.40/27,729.38
  6. Step 6: Final answer
    x = 21,807.54

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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.