Home / 38,981.88-58,481.60-12,329.49

Finding the Fourth Proportional to 38,981.88, 58,481.60 and 12,329.49

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Solution

The fourth proportional to 38,981.88, 58,481.60 and 12,329.49 is: 18,497.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,981.88 : 58,481.60 = 12,329.49 : x
  2. Step 2: Convert to fraction form
    38,981.88/58,481.60 = 12,329.49/x
  3. Step 3: Cross multiply
    38,981.88x = 58,481.60 × 12,329.49
  4. Step 4: Simplify right side
    38,981.88x = 721,048,302.38
  5. Step 5: Solve for x
    x = 721,048,302.38/38,981.88
  6. Step 6: Final answer
    x = 18,497.01

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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.