Home / 40,286.51-60,439.17-12,206.78

Finding the Fourth Proportional to 40,286.51, 60,439.17 and 12,206.78

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Solution

The fourth proportional to 40,286.51, 60,439.17 and 12,206.78 is: 18,313.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,286.51 : 60,439.17 = 12,206.78 : x
  2. Step 2: Convert to fraction form
    40,286.51/60,439.17 = 12,206.78/x
  3. Step 3: Cross multiply
    40,286.51x = 60,439.17 × 12,206.78
  4. Step 4: Simplify right side
    40,286.51x = 737,767,651.57
  5. Step 5: Solve for x
    x = 737,767,651.57/40,286.51
  6. Step 6: Final answer
    x = 18,313.02

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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.