Home / 21,965.14-32,898.49-13,181.90

Finding the Fourth Proportional to 21,965.14, 32,898.49 and 13,181.90

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Solution

The fourth proportional to 21,965.14, 32,898.49 and 13,181.90 is: 19,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.14 : 32,898.49 = 13,181.90 : x
  2. Step 2: Convert to fraction form
    21,965.14/32,898.49 = 13,181.90/x
  3. Step 3: Cross multiply
    21,965.14x = 32,898.49 × 13,181.90
  4. Step 4: Simplify right side
    21,965.14x = 433,664,654.62
  5. Step 5: Solve for x
    x = 433,664,654.62/21,965.14
  6. Step 6: Final answer
    x = 19,743.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.