Home / 30,406.85-45,708.35-28,195.93

Finding the Fourth Proportional to 30,406.85, 45,708.35 and 28,195.93

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Solution

The fourth proportional to 30,406.85, 45,708.35 and 28,195.93 is: 42,384.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406.85 : 45,708.35 = 28,195.93 : x
  2. Step 2: Convert to fraction form
    30,406.85/45,708.35 = 28,195.93/x
  3. Step 3: Cross multiply
    30,406.85x = 45,708.35 × 28,195.93
  4. Step 4: Simplify right side
    30,406.85x = 1,288,789,067.49
  5. Step 5: Solve for x
    x = 1,288,789,067.49/30,406.85
  6. Step 6: Final answer
    x = 42,384.83

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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.