Home / 21,396.56-32,021.33-13,495.41

Finding the Fourth Proportional to 21,396.56, 32,021.33 and 13,495.41

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Solution

The fourth proportional to 21,396.56, 32,021.33 and 13,495.41 is: 20,196.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.56 : 32,021.33 = 13,495.41 : x
  2. Step 2: Convert to fraction form
    21,396.56/32,021.33 = 13,495.41/x
  3. Step 3: Cross multiply
    21,396.56x = 32,021.33 × 13,495.41
  4. Step 4: Simplify right side
    21,396.56x = 432,140,909.62
  5. Step 5: Solve for x
    x = 432,140,909.62/21,396.56
  6. Step 6: Final answer
    x = 20,196.75

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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.