Home / 21,102.27-31,644.07-6,308.43

Finding the Fourth Proportional to 21,102.27, 31,644.07 and 6,308.43

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Solution

The fourth proportional to 21,102.27, 31,644.07 and 6,308.43 is: 9,459.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,102.27 : 31,644.07 = 6,308.43 : x
  2. Step 2: Convert to fraction form
    21,102.27/31,644.07 = 6,308.43/x
  3. Step 3: Cross multiply
    21,102.27x = 31,644.07 × 6,308.43
  4. Step 4: Simplify right side
    21,102.27x = 199,624,444.07
  5. Step 5: Solve for x
    x = 199,624,444.07/21,102.27
  6. Step 6: Final answer
    x = 9,459.86

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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.