Home / 30,079.68-45,163.88-16,778.66

Finding the Fourth Proportional to 30,079.68, 45,163.88 and 16,778.66

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Solution

The fourth proportional to 30,079.68, 45,163.88 and 16,778.66 is: 25,192.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,079.68 : 45,163.88 = 16,778.66 : x
  2. Step 2: Convert to fraction form
    30,079.68/45,163.88 = 16,778.66/x
  3. Step 3: Cross multiply
    30,079.68x = 45,163.88 × 16,778.66
  4. Step 4: Simplify right side
    30,079.68x = 757,789,415.82
  5. Step 5: Solve for x
    x = 757,789,415.82/30,079.68
  6. Step 6: Final answer
    x = 25,192.74

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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.