Home / 21,427.52-29,569.98-11,996

Finding the Fourth Proportional to 21,427.52, 29,569.98 and 11,996

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Solution

The fourth proportional to 21,427.52, 29,569.98 and 11,996 is: 16,554.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.52 : 29,569.98 = 11,996 : x
  2. Step 2: Convert to fraction form
    21,427.52/29,569.98 = 11,996/x
  3. Step 3: Cross multiply
    21,427.52x = 29,569.98 × 11,996
  4. Step 4: Simplify right side
    21,427.52x = 354,721,480.08
  5. Step 5: Solve for x
    x = 354,721,480.08/21,427.52
  6. Step 6: Final answer
    x = 16,554.48

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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.