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Finding the Fourth Proportional to 38,552.80, 57,830.80 and 12,256.80

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Solution

The fourth proportional to 38,552.80, 57,830.80 and 12,256.80 is: 18,385.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,552.80 : 57,830.80 = 12,256.80 : x
  2. Step 2: Convert to fraction form
    38,552.80/57,830.80 = 12,256.80/x
  3. Step 3: Cross multiply
    38,552.80x = 57,830.80 × 12,256.80
  4. Step 4: Simplify right side
    38,552.80x = 708,820,549.44
  5. Step 5: Solve for x
    x = 708,820,549.44/38,552.80
  6. Step 6: Final answer
    x = 18,385.71

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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.