Home / 40,286.20-60,426.78-12,206.20

Finding the Fourth Proportional to 40,286.20, 60,426.78 and 12,206.20

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Solution

The fourth proportional to 40,286.20, 60,426.78 and 12,206.20 is: 18,308.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,286.20 : 60,426.78 = 12,206.20 : x
  2. Step 2: Convert to fraction form
    40,286.20/60,426.78 = 12,206.20/x
  3. Step 3: Cross multiply
    40,286.20x = 60,426.78 × 12,206.20
  4. Step 4: Simplify right side
    40,286.20x = 737,581,362.04
  5. Step 5: Solve for x
    x = 737,581,362.04/40,286.20
  6. Step 6: Final answer
    x = 18,308.54

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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.