Home / 21,203.12-29,258.84-11,770.92

Finding the Fourth Proportional to 21,203.12, 29,258.84 and 11,770.92

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Solution

The fourth proportional to 21,203.12, 29,258.84 and 11,770.92 is: 16,243.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.12 : 29,258.84 = 11,770.92 : x
  2. Step 2: Convert to fraction form
    21,203.12/29,258.84 = 11,770.92/x
  3. Step 3: Cross multiply
    21,203.12x = 29,258.84 × 11,770.92
  4. Step 4: Simplify right side
    21,203.12x = 344,403,464.93
  5. Step 5: Solve for x
    x = 344,403,464.93/21,203.12
  6. Step 6: Final answer
    x = 16,243.06

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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.