Home / 21,541.48-29,729.03-11,982.26

Finding the Fourth Proportional to 21,541.48, 29,729.03 and 11,982.26

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Solution

The fourth proportional to 21,541.48, 29,729.03 and 11,982.26 is: 16,536.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,541.48 : 29,729.03 = 11,982.26 : x
  2. Step 2: Convert to fraction form
    21,541.48/29,729.03 = 11,982.26/x
  3. Step 3: Cross multiply
    21,541.48x = 29,729.03 × 11,982.26
  4. Step 4: Simplify right side
    21,541.48x = 356,220,981.42
  5. Step 5: Solve for x
    x = 356,220,981.42/21,541.48
  6. Step 6: Final answer
    x = 16,536.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.