Home / 21,200.84-29,258.48-11,769.56

Finding the Fourth Proportional to 21,200.84, 29,258.48 and 11,769.56

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Solution

The fourth proportional to 21,200.84, 29,258.48 and 11,769.56 is: 16,242.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.84 : 29,258.48 = 11,769.56 : x
  2. Step 2: Convert to fraction form
    21,200.84/29,258.48 = 11,769.56/x
  3. Step 3: Cross multiply
    21,200.84x = 29,258.48 × 11,769.56
  4. Step 4: Simplify right side
    21,200.84x = 344,359,435.87
  5. Step 5: Solve for x
    x = 344,359,435.87/21,200.84
  6. Step 6: Final answer
    x = 16,242.73

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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.