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Finding the Fourth Proportional to 38,325.88, 57,554.22 and 20,829.88

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Solution

The fourth proportional to 38,325.88, 57,554.22 and 20,829.88 is: 31,280.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,325.88 : 57,554.22 = 20,829.88 : x
  2. Step 2: Convert to fraction form
    38,325.88/57,554.22 = 20,829.88/x
  3. Step 3: Cross multiply
    38,325.88x = 57,554.22 × 20,829.88
  4. Step 4: Simplify right side
    38,325.88x = 1,198,847,496.09
  5. Step 5: Solve for x
    x = 1,198,847,496.09/38,325.88
  6. Step 6: Final answer
    x = 31,280.36

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1.5x scale

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.