Home / 21,160.56-29,201.49-11,600.50

Finding the Fourth Proportional to 21,160.56, 29,201.49 and 11,600.50

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Solution

The fourth proportional to 21,160.56, 29,201.49 and 11,600.50 is: 16,008.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160.56 : 29,201.49 = 11,600.50 : x
  2. Step 2: Convert to fraction form
    21,160.56/29,201.49 = 11,600.50/x
  3. Step 3: Cross multiply
    21,160.56x = 29,201.49 × 11,600.50
  4. Step 4: Simplify right side
    21,160.56x = 338,751,884.75
  5. Step 5: Solve for x
    x = 338,751,884.75/21,160.56
  6. Step 6: Final answer
    x = 16,008.64

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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.