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Finding the Fourth Proportional to 38,432.80, 57,735.60 and 26,768.80

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Solution

The fourth proportional to 38,432.80, 57,735.60 and 26,768.80 is: 40,213.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,432.80 : 57,735.60 = 26,768.80 : x
  2. Step 2: Convert to fraction form
    38,432.80/57,735.60 = 26,768.80/x
  3. Step 3: Cross multiply
    38,432.80x = 57,735.60 × 26,768.80
  4. Step 4: Simplify right side
    38,432.80x = 1,545,512,729.28
  5. Step 5: Solve for x
    x = 1,545,512,729.28/38,432.80
  6. Step 6: Final answer
    x = 40,213.38

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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.