Home / 21,679.90-32,493.22-12,327.74

Finding the Fourth Proportional to 21,679.90, 32,493.22 and 12,327.74

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Solution

The fourth proportional to 21,679.90, 32,493.22 and 12,327.74 is: 18,476.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,679.90 : 32,493.22 = 12,327.74 : x
  2. Step 2: Convert to fraction form
    21,679.90/32,493.22 = 12,327.74/x
  3. Step 3: Cross multiply
    21,679.90x = 32,493.22 × 12,327.74
  4. Step 4: Simplify right side
    21,679.90x = 400,567,896.49
  5. Step 5: Solve for x
    x = 400,567,896.49/21,679.90
  6. Step 6: Final answer
    x = 18,476.47

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1.5x scale

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.