Home / 38,634.45-57,911.72-21,958.58

Finding the Fourth Proportional to 38,634.45, 57,911.72 and 21,958.58

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Solution

The fourth proportional to 38,634.45, 57,911.72 and 21,958.58 is: 32,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,634.45 : 57,911.72 = 21,958.58 : x
  2. Step 2: Convert to fraction form
    38,634.45/57,911.72 = 21,958.58/x
  3. Step 3: Cross multiply
    38,634.45x = 57,911.72 × 21,958.58
  4. Step 4: Simplify right side
    38,634.45x = 1,271,658,737.21
  5. Step 5: Solve for x
    x = 1,271,658,737.21/38,634.45
  6. Step 6: Final answer
    x = 32,915.15

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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.