Home / 21,408.68-32,116.47-7,365.28

Finding the Fourth Proportional to 21,408.68, 32,116.47 and 7,365.28

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Solution

The fourth proportional to 21,408.68, 32,116.47 and 7,365.28 is: 11,049.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,408.68 : 32,116.47 = 7,365.28 : x
  2. Step 2: Convert to fraction form
    21,408.68/32,116.47 = 7,365.28/x
  3. Step 3: Cross multiply
    21,408.68x = 32,116.47 × 7,365.28
  4. Step 4: Simplify right side
    21,408.68x = 236,546,794.16
  5. Step 5: Solve for x
    x = 236,546,794.16/21,408.68
  6. Step 6: Final answer
    x = 11,049.11

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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.