Home / 47,721.24-65,844.84-28,857.96

Finding the Fourth Proportional to 47,721.24, 65,844.84 and 28,857.96

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Solution

The fourth proportional to 47,721.24, 65,844.84 and 28,857.96 is: 39,817.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,721.24 : 65,844.84 = 28,857.96 : x
  2. Step 2: Convert to fraction form
    47,721.24/65,844.84 = 28,857.96/x
  3. Step 3: Cross multiply
    47,721.24x = 65,844.84 × 28,857.96
  4. Step 4: Simplify right side
    47,721.24x = 1,900,147,758.93
  5. Step 5: Solve for x
    x = 1,900,147,758.93/47,721.24
  6. Step 6: Final answer
    x = 39,817.65

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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.