Home / 40,686.45-61,029.67-11,105.07

Finding the Fourth Proportional to 40,686.45, 61,029.67 and 11,105.07

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Solution

The fourth proportional to 40,686.45, 61,029.67 and 11,105.07 is: 16,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,686.45 : 61,029.67 = 11,105.07 : x
  2. Step 2: Convert to fraction form
    40,686.45/61,029.67 = 11,105.07/x
  3. Step 3: Cross multiply
    40,686.45x = 61,029.67 × 11,105.07
  4. Step 4: Simplify right side
    40,686.45x = 677,738,757.43
  5. Step 5: Solve for x
    x = 677,738,757.43/40,686.45
  6. Step 6: Final answer
    x = 16,657.61

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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.