Home / 21,202.88-29,258.49-11,770.70

Finding the Fourth Proportional to 21,202.88, 29,258.49 and 11,770.70

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Solution

The fourth proportional to 21,202.88, 29,258.49 and 11,770.70 is: 16,242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,202.88 : 29,258.49 = 11,770.70 : x
  2. Step 2: Convert to fraction form
    21,202.88/29,258.49 = 11,770.70/x
  3. Step 3: Cross multiply
    21,202.88x = 29,258.49 × 11,770.70
  4. Step 4: Simplify right side
    21,202.88x = 344,392,761.95
  5. Step 5: Solve for x
    x = 344,392,761.95/21,202.88
  6. Step 6: Final answer
    x = 16,242.74

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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.