Home / 21,348.88-32,023.28-11,867.22

Finding the Fourth Proportional to 21,348.88, 32,023.28 and 11,867.22

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Solution

The fourth proportional to 21,348.88, 32,023.28 and 11,867.22 is: 17,800.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348.88 : 32,023.28 = 11,867.22 : x
  2. Step 2: Convert to fraction form
    21,348.88/32,023.28 = 11,867.22/x
  3. Step 3: Cross multiply
    21,348.88x = 32,023.28 × 11,867.22
  4. Step 4: Simplify right side
    21,348.88x = 380,027,308.88
  5. Step 5: Solve for x
    x = 380,027,308.88/21,348.88
  6. Step 6: Final answer
    x = 17,800.81

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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.