Home / 14,459.72-21,687.44-3,930.35

Finding the Fourth Proportional to 14,459.72, 21,687.44 and 3,930.35

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Solution

The fourth proportional to 14,459.72, 21,687.44 and 3,930.35 is: 5,894.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,459.72 : 21,687.44 = 3,930.35 : x
  2. Step 2: Convert to fraction form
    14,459.72/21,687.44 = 3,930.35/x
  3. Step 3: Cross multiply
    14,459.72x = 21,687.44 × 3,930.35
  4. Step 4: Simplify right side
    14,459.72x = 85,239,101.72
  5. Step 5: Solve for x
    x = 85,239,101.72/14,459.72
  6. Step 6: Final answer
    x = 5,894.94

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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.