Home / 20,964.69-31,446.09-5,971.86

Finding the Fourth Proportional to 20,964.69, 31,446.09 and 5,971.86

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Solution

The fourth proportional to 20,964.69, 31,446.09 and 5,971.86 is: 8,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,964.69 : 31,446.09 = 5,971.86 : x
  2. Step 2: Convert to fraction form
    20,964.69/31,446.09 = 5,971.86/x
  3. Step 3: Cross multiply
    20,964.69x = 31,446.09 × 5,971.86
  4. Step 4: Simplify right side
    20,964.69x = 187,791,647.03
  5. Step 5: Solve for x
    x = 187,791,647.03/20,964.69
  6. Step 6: Final answer
    x = 8,957.52

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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.