Home / 38,930.09-58,403.34-12,632.78

Finding the Fourth Proportional to 38,930.09, 58,403.34 and 12,632.78

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Solution

The fourth proportional to 38,930.09, 58,403.34 and 12,632.78 is: 18,951.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,930.09 : 58,403.34 = 12,632.78 : x
  2. Step 2: Convert to fraction form
    38,930.09/58,403.34 = 12,632.78/x
  3. Step 3: Cross multiply
    38,930.09x = 58,403.34 × 12,632.78
  4. Step 4: Simplify right side
    38,930.09x = 737,796,691.49
  5. Step 5: Solve for x
    x = 737,796,691.49/38,930.09
  6. Step 6: Final answer
    x = 18,951.84

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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.