Home / 20,962.33-31,443.50-5,379.96

Finding the Fourth Proportional to 20,962.33, 31,443.50 and 5,379.96

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Solution

The fourth proportional to 20,962.33, 31,443.50 and 5,379.96 is: 8,069.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.33 : 31,443.50 = 5,379.96 : x
  2. Step 2: Convert to fraction form
    20,962.33/31,443.50 = 5,379.96/x
  3. Step 3: Cross multiply
    20,962.33x = 31,443.50 × 5,379.96
  4. Step 4: Simplify right side
    20,962.33x = 169,164,588.14
  5. Step 5: Solve for x
    x = 169,164,588.14/20,962.33
  6. Step 6: Final answer
    x = 8,069.93

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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.