Home / 21,337.26-31,982.02-7,997.41

Finding the Fourth Proportional to 21,337.26, 31,982.02 and 7,997.41

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Solution

The fourth proportional to 21,337.26, 31,982.02 and 7,997.41 is: 11,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,337.26 : 31,982.02 = 7,997.41 : x
  2. Step 2: Convert to fraction form
    21,337.26/31,982.02 = 7,997.41/x
  3. Step 3: Cross multiply
    21,337.26x = 31,982.02 × 7,997.41
  4. Step 4: Simplify right side
    21,337.26x = 255,773,346.55
  5. Step 5: Solve for x
    x = 255,773,346.55/21,337.26
  6. Step 6: Final answer
    x = 11,987.17

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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.