Home / 21,276.92-29,361.48-11,845.01

Finding the Fourth Proportional to 21,276.92, 29,361.48 and 11,845.01

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Solution

The fourth proportional to 21,276.92, 29,361.48 and 11,845.01 is: 16,345.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.92 : 29,361.48 = 11,845.01 : x
  2. Step 2: Convert to fraction form
    21,276.92/29,361.48 = 11,845.01/x
  3. Step 3: Cross multiply
    21,276.92x = 29,361.48 × 11,845.01
  4. Step 4: Simplify right side
    21,276.92x = 347,787,024.21
  5. Step 5: Solve for x
    x = 347,787,024.21/21,276.92
  6. Step 6: Final answer
    x = 16,345.74

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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.