Home / 21,261.18-29,336.44-11,829.74

Finding the Fourth Proportional to 21,261.18, 29,336.44 and 11,829.74

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Solution

The fourth proportional to 21,261.18, 29,336.44 and 11,829.74 is: 16,322.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261.18 : 29,336.44 = 11,829.74 : x
  2. Step 2: Convert to fraction form
    21,261.18/29,336.44 = 11,829.74/x
  3. Step 3: Cross multiply
    21,261.18x = 29,336.44 × 11,829.74
  4. Step 4: Simplify right side
    21,261.18x = 347,042,457.73
  5. Step 5: Solve for x
    x = 347,042,457.73/21,261.18
  6. Step 6: Final answer
    x = 16,322.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.