Home / 39,674.79-59,512.38-13,379.76

Finding the Fourth Proportional to 39,674.79, 59,512.38 and 13,379.76

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Solution

The fourth proportional to 39,674.79, 59,512.38 and 13,379.76 is: 20,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,674.79 : 59,512.38 = 13,379.76 : x
  2. Step 2: Convert to fraction form
    39,674.79/59,512.38 = 13,379.76/x
  3. Step 3: Cross multiply
    39,674.79x = 59,512.38 × 13,379.76
  4. Step 4: Simplify right side
    39,674.79x = 796,261,361.43
  5. Step 5: Solve for x
    x = 796,261,361.43/39,674.79
  6. Step 6: Final answer
    x = 20,069.71

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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.