Home / 20,926.54-31,377.99-6,882.77

Finding the Fourth Proportional to 20,926.54, 31,377.99 and 6,882.77

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Solution

The fourth proportional to 20,926.54, 31,377.99 and 6,882.77 is: 10,320.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.54 : 31,377.99 = 6,882.77 : x
  2. Step 2: Convert to fraction form
    20,926.54/31,377.99 = 6,882.77/x
  3. Step 3: Cross multiply
    20,926.54x = 31,377.99 × 6,882.77
  4. Step 4: Simplify right side
    20,926.54x = 215,967,331.34
  5. Step 5: Solve for x
    x = 215,967,331.34/20,926.54
  6. Step 6: Final answer
    x = 10,320.26

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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.