Home / 21,427.50-29,569.96-11,996.26

Finding the Fourth Proportional to 21,427.50, 29,569.96 and 11,996.26

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Solution

The fourth proportional to 21,427.50, 29,569.96 and 11,996.26 is: 16,554.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.50 : 29,569.96 = 11,996.26 : x
  2. Step 2: Convert to fraction form
    21,427.50/29,569.96 = 11,996.26/x
  3. Step 3: Cross multiply
    21,427.50x = 29,569.96 × 11,996.26
  4. Step 4: Simplify right side
    21,427.50x = 354,728,928.35
  5. Step 5: Solve for x
    x = 354,728,928.35/21,427.50
  6. Step 6: Final answer
    x = 16,554.84

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1.5x scale

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.