Home / 21,255.90-29,333.30-11,824.46

Finding the Fourth Proportional to 21,255.90, 29,333.30 and 11,824.46

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Solution

The fourth proportional to 21,255.90, 29,333.30 and 11,824.46 is: 16,317.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,255.90 : 29,333.30 = 11,824.46 : x
  2. Step 2: Convert to fraction form
    21,255.90/29,333.30 = 11,824.46/x
  3. Step 3: Cross multiply
    21,255.90x = 29,333.30 × 11,824.46
  4. Step 4: Simplify right side
    21,255.90x = 346,850,336.73
  5. Step 5: Solve for x
    x = 346,850,336.73/21,255.90
  6. Step 6: Final answer
    x = 16,317.84

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1.5x scale

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.