Home / 21,851.10-32,786.28-11,460.42

Finding the Fourth Proportional to 21,851.10, 32,786.28 and 11,460.42

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Solution

The fourth proportional to 21,851.10, 32,786.28 and 11,460.42 is: 17,195.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851.10 : 32,786.28 = 11,460.42 : x
  2. Step 2: Convert to fraction form
    21,851.10/32,786.28 = 11,460.42/x
  3. Step 3: Cross multiply
    21,851.10x = 32,786.28 × 11,460.42
  4. Step 4: Simplify right side
    21,851.10x = 375,744,539.04
  5. Step 5: Solve for x
    x = 375,744,539.04/21,851.10
  6. Step 6: Final answer
    x = 17,195.68

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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.