Home / 19,857.42-29,789.56-6,709.88

Finding the Fourth Proportional to 19,857.42, 29,789.56 and 6,709.88

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Solution

The fourth proportional to 19,857.42, 29,789.56 and 6,709.88 is: 10,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.42 : 29,789.56 = 6,709.88 : x
  2. Step 2: Convert to fraction form
    19,857.42/29,789.56 = 6,709.88/x
  3. Step 3: Cross multiply
    19,857.42x = 29,789.56 × 6,709.88
  4. Step 4: Simplify right side
    19,857.42x = 199,884,372.85
  5. Step 5: Solve for x
    x = 199,884,372.85/19,857.42
  6. Step 6: Final answer
    x = 10,065.98

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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.