Home / 14,221.31-21,335.31-4,861.42

Finding the Fourth Proportional to 14,221.31, 21,335.31 and 4,861.42

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Solution

The fourth proportional to 14,221.31, 21,335.31 and 4,861.42 is: 7,293.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.31 : 21,335.31 = 4,861.42 : x
  2. Step 2: Convert to fraction form
    14,221.31/21,335.31 = 4,861.42/x
  3. Step 3: Cross multiply
    14,221.31x = 21,335.31 × 4,861.42
  4. Step 4: Simplify right side
    14,221.31x = 103,719,849.40
  5. Step 5: Solve for x
    x = 103,719,849.40/14,221.31
  6. Step 6: Final answer
    x = 7,293.27

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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.