Home / 14,009.28-21,014.28-3,621

Finding the Fourth Proportional to 14,009.28, 21,014.28 and 3,621

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Solution

The fourth proportional to 14,009.28, 21,014.28 and 3,621 is: 5,431.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.28 : 21,014.28 = 3,621 : x
  2. Step 2: Convert to fraction form
    14,009.28/21,014.28 = 3,621/x
  3. Step 3: Cross multiply
    14,009.28x = 21,014.28 × 3,621
  4. Step 4: Simplify right side
    14,009.28x = 76,092,707.88
  5. Step 5: Solve for x
    x = 76,092,707.88/14,009.28
  6. Step 6: Final answer
    x = 5,431.59

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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.