Home / 20,855.91-31,288.76-6,064.39

Finding the Fourth Proportional to 20,855.91, 31,288.76 and 6,064.39

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Solution

The fourth proportional to 20,855.91, 31,288.76 and 6,064.39 is: 9,098.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,855.91 : 31,288.76 = 6,064.39 : x
  2. Step 2: Convert to fraction form
    20,855.91/31,288.76 = 6,064.39/x
  3. Step 3: Cross multiply
    20,855.91x = 31,288.76 × 6,064.39
  4. Step 4: Simplify right side
    20,855.91x = 189,747,243.26
  5. Step 5: Solve for x
    x = 189,747,243.26/20,855.91
  6. Step 6: Final answer
    x = 9,098.01

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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.