Home / 14,387.32-21,579.43-3,858.39

Finding the Fourth Proportional to 14,387.32, 21,579.43 and 3,858.39

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Solution

The fourth proportional to 14,387.32, 21,579.43 and 3,858.39 is: 5,787.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387.32 : 21,579.43 = 3,858.39 : x
  2. Step 2: Convert to fraction form
    14,387.32/21,579.43 = 3,858.39/x
  3. Step 3: Cross multiply
    14,387.32x = 21,579.43 × 3,858.39
  4. Step 4: Simplify right side
    14,387.32x = 83,261,739.37
  5. Step 5: Solve for x
    x = 83,261,739.37/14,387.32
  6. Step 6: Final answer
    x = 5,787.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.