Home / 21,276.38-29,361.93-11,845.10

Finding the Fourth Proportional to 21,276.38, 29,361.93 and 11,845.10

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Solution

The fourth proportional to 21,276.38, 29,361.93 and 11,845.10 is: 16,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.38 : 29,361.93 = 11,845.10 : x
  2. Step 2: Convert to fraction form
    21,276.38/29,361.93 = 11,845.10/x
  3. Step 3: Cross multiply
    21,276.38x = 29,361.93 × 11,845.10
  4. Step 4: Simplify right side
    21,276.38x = 347,794,997.04
  5. Step 5: Solve for x
    x = 347,794,997.04/21,276.38
  6. Step 6: Final answer
    x = 16,346.53

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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.