Home / 21,201.63-29,258.19-11,770.13

Finding the Fourth Proportional to 21,201.63, 29,258.19 and 11,770.13

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Solution

The fourth proportional to 21,201.63, 29,258.19 and 11,770.13 is: 16,242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201.63 : 29,258.19 = 11,770.13 : x
  2. Step 2: Convert to fraction form
    21,201.63/29,258.19 = 11,770.13/x
  3. Step 3: Cross multiply
    21,201.63x = 29,258.19 × 11,770.13
  4. Step 4: Simplify right side
    21,201.63x = 344,372,553.57
  5. Step 5: Solve for x
    x = 344,372,553.57/21,201.63
  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.