Home / 21,202.28-29,258.76-11,770.64

Finding the Fourth Proportional to 21,202.28, 29,258.76 and 11,770.64

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Solution

The fourth proportional to 21,202.28, 29,258.76 and 11,770.64 is: 16,243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,202.28 : 29,258.76 = 11,770.64 : x
  2. Step 2: Convert to fraction form
    21,202.28/29,258.76 = 11,770.64/x
  3. Step 3: Cross multiply
    21,202.28x = 29,258.76 × 11,770.64
  4. Step 4: Simplify right side
    21,202.28x = 344,394,330.81
  5. Step 5: Solve for x
    x = 344,394,330.81/21,202.28
  6. Step 6: Final answer
    x = 16,243.27

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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.