Home / 30,195.48-45,311.64-19,086.84

Finding the Fourth Proportional to 30,195.48, 45,311.64 and 19,086.84

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Solution

The fourth proportional to 30,195.48, 45,311.64 and 19,086.84 is: 28,641.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,195.48 : 45,311.64 = 19,086.84 : x
  2. Step 2: Convert to fraction form
    30,195.48/45,311.64 = 19,086.84/x
  3. Step 3: Cross multiply
    30,195.48x = 45,311.64 × 19,086.84
  4. Step 4: Simplify right side
    30,195.48x = 864,856,022.82
  5. Step 5: Solve for x
    x = 864,856,022.82/30,195.48
  6. Step 6: Final answer
    x = 28,641.90

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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.