Home / 38,806.80-58,172.64-12,493.68

Finding the Fourth Proportional to 38,806.80, 58,172.64 and 12,493.68

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Solution

The fourth proportional to 38,806.80, 58,172.64 and 12,493.68 is: 18,728.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,806.80 : 58,172.64 = 12,493.68 : x
  2. Step 2: Convert to fraction form
    38,806.80/58,172.64 = 12,493.68/x
  3. Step 3: Cross multiply
    38,806.80x = 58,172.64 × 12,493.68
  4. Step 4: Simplify right side
    38,806.80x = 726,790,348.92
  5. Step 5: Solve for x
    x = 726,790,348.92/38,806.80
  6. Step 6: Final answer
    x = 18,728.43

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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.