Home / 21,267.79-29,349.07-11,837.23

Finding the Fourth Proportional to 21,267.79, 29,349.07 and 11,837.23

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Solution

The fourth proportional to 21,267.79, 29,349.07 and 11,837.23 is: 16,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.79 : 29,349.07 = 11,837.23 : x
  2. Step 2: Convert to fraction form
    21,267.79/29,349.07 = 11,837.23/x
  3. Step 3: Cross multiply
    21,267.79x = 29,349.07 × 11,837.23
  4. Step 4: Simplify right side
    21,267.79x = 347,411,691.88
  5. Step 5: Solve for x
    x = 347,411,691.88/21,267.79
  6. Step 6: Final answer
    x = 16,335.11

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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.