Home / 38,158.75-52,659.08-21,391.75

Finding the Fourth Proportional to 38,158.75, 52,659.08 and 21,391.75

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Solution

The fourth proportional to 38,158.75, 52,659.08 and 21,391.75 is: 29,520.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,158.75 : 52,659.08 = 21,391.75 : x
  2. Step 2: Convert to fraction form
    38,158.75/52,659.08 = 21,391.75/x
  3. Step 3: Cross multiply
    38,158.75x = 52,659.08 × 21,391.75
  4. Step 4: Simplify right side
    38,158.75x = 1,126,469,874.59
  5. Step 5: Solve for x
    x = 1,126,469,874.59/38,158.75
  6. Step 6: Final answer
    x = 29,520.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.