Home / 21,676.98-29,901.35-13,705.37

Finding the Fourth Proportional to 21,676.98, 29,901.35 and 13,705.37

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Solution

The fourth proportional to 21,676.98, 29,901.35 and 13,705.37 is: 18,905.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,676.98 : 29,901.35 = 13,705.37 : x
  2. Step 2: Convert to fraction form
    21,676.98/29,901.35 = 13,705.37/x
  3. Step 3: Cross multiply
    21,676.98x = 29,901.35 × 13,705.37
  4. Step 4: Simplify right side
    21,676.98x = 409,809,062.14
  5. Step 5: Solve for x
    x = 409,809,062.14/21,676.98
  6. Step 6: Final answer
    x = 18,905.26

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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.