Home / 21,274.35-31,911.06-5,691.97

Finding the Fourth Proportional to 21,274.35, 31,911.06 and 5,691.97

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Solution

The fourth proportional to 21,274.35, 31,911.06 and 5,691.97 is: 8,537.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.35 : 31,911.06 = 5,691.97 : x
  2. Step 2: Convert to fraction form
    21,274.35/31,911.06 = 5,691.97/x
  3. Step 3: Cross multiply
    21,274.35x = 31,911.06 × 5,691.97
  4. Step 4: Simplify right side
    21,274.35x = 181,636,857.42
  5. Step 5: Solve for x
    x = 181,636,857.42/21,274.35
  6. Step 6: Final answer
    x = 8,537.83

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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.