Home / 41,018.68-61,529.35-12,939

Finding the Fourth Proportional to 41,018.68, 61,529.35 and 12,939

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Solution

The fourth proportional to 41,018.68, 61,529.35 and 12,939 is: 19,408.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,018.68 : 61,529.35 = 12,939 : x
  2. Step 2: Convert to fraction form
    41,018.68/61,529.35 = 12,939/x
  3. Step 3: Cross multiply
    41,018.68x = 61,529.35 × 12,939
  4. Step 4: Simplify right side
    41,018.68x = 796,128,259.65
  5. Step 5: Solve for x
    x = 796,128,259.65/41,018.68
  6. Step 6: Final answer
    x = 19,408.92

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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.