Home / 36,424.82-54,643-12,738.94

Finding the Fourth Proportional to 36,424.82, 54,643 and 12,738.94

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Solution

The fourth proportional to 36,424.82, 54,643 and 12,738.94 is: 19,110.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,424.82 : 54,643 = 12,738.94 : x
  2. Step 2: Convert to fraction form
    36,424.82/54,643 = 12,738.94/x
  3. Step 3: Cross multiply
    36,424.82x = 54,643 × 12,738.94
  4. Step 4: Simplify right side
    36,424.82x = 696,093,898.42
  5. Step 5: Solve for x
    x = 696,093,898.42/36,424.82
  6. Step 6: Final answer
    x = 19,110.43

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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.