Home / 19,991.70-29,979.45-6,837.30

Finding the Fourth Proportional to 19,991.70, 29,979.45 and 6,837.30

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Solution

The fourth proportional to 19,991.70, 29,979.45 and 6,837.30 is: 10,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.70 : 29,979.45 = 6,837.30 : x
  2. Step 2: Convert to fraction form
    19,991.70/29,979.45 = 6,837.30/x
  3. Step 3: Cross multiply
    19,991.70x = 29,979.45 × 6,837.30
  4. Step 4: Simplify right side
    19,991.70x = 204,978,493.49
  5. Step 5: Solve for x
    x = 204,978,493.49/19,991.70
  6. Step 6: Final answer
    x = 10,253.18

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1.5x scale

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.