Home / 30,103.07-45,163.71-11,388.84

Finding the Fourth Proportional to 30,103.07, 45,163.71 and 11,388.84

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Solution

The fourth proportional to 30,103.07, 45,163.71 and 11,388.84 is: 17,086.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.07 : 45,163.71 = 11,388.84 : x
  2. Step 2: Convert to fraction form
    30,103.07/45,163.71 = 11,388.84/x
  3. Step 3: Cross multiply
    30,103.07x = 45,163.71 × 11,388.84
  4. Step 4: Simplify right side
    30,103.07x = 514,362,336.21
  5. Step 5: Solve for x
    x = 514,362,336.21/30,103.07
  6. Step 6: Final answer
    x = 17,086.71

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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.