Home / 21,110.00-31,670.33-6,318.86

Finding the Fourth Proportional to 21,110.00, 31,670.33 and 6,318.86

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Solution

The fourth proportional to 21,110.00, 31,670.33 and 6,318.86 is: 9,479.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,110.00 : 31,670.33 = 6,318.86 : x
  2. Step 2: Convert to fraction form
    21,110.00/31,670.33 = 6,318.86/x
  3. Step 3: Cross multiply
    21,110.00x = 31,670.33 × 6,318.86
  4. Step 4: Simplify right side
    21,110.00x = 200,120,191.48
  5. Step 5: Solve for x
    x = 200,120,191.48/21,110.00
  6. Step 6: Final answer
    x = 9,479.88

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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.