Home / 20,011.91-29,984.99-6,857.10

Finding the Fourth Proportional to 20,011.91, 29,984.99 and 6,857.10

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Solution

The fourth proportional to 20,011.91, 29,984.99 and 6,857.10 is: 10,274.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.91 : 29,984.99 = 6,857.10 : x
  2. Step 2: Convert to fraction form
    20,011.91/29,984.99 = 6,857.10/x
  3. Step 3: Cross multiply
    20,011.91x = 29,984.99 × 6,857.10
  4. Step 4: Simplify right side
    20,011.91x = 205,610,040.64
  5. Step 5: Solve for x
    x = 205,610,040.64/20,011.91
  6. Step 6: Final answer
    x = 10,274.39

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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.