Home / 36,639.88-54,964.22-12,942.56

Finding the Fourth Proportional to 36,639.88, 54,964.22 and 12,942.56

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Solution

The fourth proportional to 36,639.88, 54,964.22 and 12,942.56 is: 19,415.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,639.88 : 54,964.22 = 12,942.56 : x
  2. Step 2: Convert to fraction form
    36,639.88/54,964.22 = 12,942.56/x
  3. Step 3: Cross multiply
    36,639.88x = 54,964.22 × 12,942.56
  4. Step 4: Simplify right side
    36,639.88x = 711,377,715.20
  5. Step 5: Solve for x
    x = 711,377,715.20/36,639.88
  6. Step 6: Final answer
    x = 19,415.39

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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.