Home / 21,534.62-32,308.20-13,219.97

Finding the Fourth Proportional to 21,534.62, 32,308.20 and 13,219.97

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Solution

The fourth proportional to 21,534.62, 32,308.20 and 13,219.97 is: 19,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,534.62 : 32,308.20 = 13,219.97 : x
  2. Step 2: Convert to fraction form
    21,534.62/32,308.20 = 13,219.97/x
  3. Step 3: Cross multiply
    21,534.62x = 32,308.20 × 13,219.97
  4. Step 4: Simplify right side
    21,534.62x = 427,113,273.21
  5. Step 5: Solve for x
    x = 427,113,273.21/21,534.62
  6. Step 6: Final answer
    x = 19,833.80

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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.