Home / 21,261.17-29,339.61-11,829.53

Finding the Fourth Proportional to 21,261.17, 29,339.61 and 11,829.53

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Solution

The fourth proportional to 21,261.17, 29,339.61 and 11,829.53 is: 16,324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261.17 : 29,339.61 = 11,829.53 : x
  2. Step 2: Convert to fraction form
    21,261.17/29,339.61 = 11,829.53/x
  3. Step 3: Cross multiply
    21,261.17x = 29,339.61 × 11,829.53
  4. Step 4: Simplify right side
    21,261.17x = 347,073,796.68
  5. Step 5: Solve for x
    x = 347,073,796.68/21,261.17
  6. Step 6: Final answer
    x = 16,324.30

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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.