Home / 21,261.02-29,338.96-11,699.27

Finding the Fourth Proportional to 21,261.02, 29,338.96 and 11,699.27

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Solution

The fourth proportional to 21,261.02, 29,338.96 and 11,699.27 is: 16,144.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261.02 : 29,338.96 = 11,699.27 : x
  2. Step 2: Convert to fraction form
    21,261.02/29,338.96 = 11,699.27/x
  3. Step 3: Cross multiply
    21,261.02x = 29,338.96 × 11,699.27
  4. Step 4: Simplify right side
    21,261.02x = 343,244,414.56
  5. Step 5: Solve for x
    x = 343,244,414.56/21,261.02
  6. Step 6: Final answer
    x = 16,144.31

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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.