Home / 21,201.72-29,258.25-11,770.26

Finding the Fourth Proportional to 21,201.72, 29,258.25 and 11,770.26

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Solution

The fourth proportional to 21,201.72, 29,258.25 and 11,770.26 is: 16,242.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201.72 : 29,258.25 = 11,770.26 : x
  2. Step 2: Convert to fraction form
    21,201.72/29,258.25 = 11,770.26/x
  3. Step 3: Cross multiply
    21,201.72x = 29,258.25 × 11,770.26
  4. Step 4: Simplify right side
    21,201.72x = 344,377,209.65
  5. Step 5: Solve for x
    x = 344,377,209.65/21,201.72
  6. Step 6: Final answer
    x = 16,242.89

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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.