Home / 38,638.15-57,942.34-13,673.55

Finding the Fourth Proportional to 38,638.15, 57,942.34 and 13,673.55

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Solution

The fourth proportional to 38,638.15, 57,942.34 and 13,673.55 is: 20,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,638.15 : 57,942.34 = 13,673.55 : x
  2. Step 2: Convert to fraction form
    38,638.15/57,942.34 = 13,673.55/x
  3. Step 3: Cross multiply
    38,638.15x = 57,942.34 × 13,673.55
  4. Step 4: Simplify right side
    38,638.15x = 792,277,193.40
  5. Step 5: Solve for x
    x = 792,277,193.40/38,638.15
  6. Step 6: Final answer
    x = 20,505.05

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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.