Home / 21,858.42-32,787.63-10,157.97

Finding the Fourth Proportional to 21,858.42, 32,787.63 and 10,157.97

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Solution

The fourth proportional to 21,858.42, 32,787.63 and 10,157.97 is: 15,236.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,858.42 : 32,787.63 = 10,157.97 : x
  2. Step 2: Convert to fraction form
    21,858.42/32,787.63 = 10,157.97/x
  3. Step 3: Cross multiply
    21,858.42x = 32,787.63 × 10,157.97
  4. Step 4: Simplify right side
    21,858.42x = 333,055,761.91
  5. Step 5: Solve for x
    x = 333,055,761.91/21,858.42
  6. Step 6: Final answer
    x = 15,236.96

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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.