Home / 19,921.62-29,876.49-6,771

Finding the Fourth Proportional to 19,921.62, 29,876.49 and 6,771

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Solution

The fourth proportional to 19,921.62, 29,876.49 and 6,771 is: 10,154.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.62 : 29,876.49 = 6,771 : x
  2. Step 2: Convert to fraction form
    19,921.62/29,876.49 = 6,771/x
  3. Step 3: Cross multiply
    19,921.62x = 29,876.49 × 6,771
  4. Step 4: Simplify right side
    19,921.62x = 202,293,713.79
  5. Step 5: Solve for x
    x = 202,293,713.79/19,921.62
  6. Step 6: Final answer
    x = 10,154.48

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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.