Home / 21,536.22-32,319.09-8,388.66

Finding the Fourth Proportional to 21,536.22, 32,319.09 and 8,388.66

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Solution

The fourth proportional to 21,536.22, 32,319.09 and 8,388.66 is: 12,588.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,536.22 : 32,319.09 = 8,388.66 : x
  2. Step 2: Convert to fraction form
    21,536.22/32,319.09 = 8,388.66/x
  3. Step 3: Cross multiply
    21,536.22x = 32,319.09 × 8,388.66
  4. Step 4: Simplify right side
    21,536.22x = 271,113,857.52
  5. Step 5: Solve for x
    x = 271,113,857.52/21,536.22
  6. Step 6: Final answer
    x = 12,588.74

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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.