Home / 30,106.58-45,135.18-11,375.96

Finding the Fourth Proportional to 30,106.58, 45,135.18 and 11,375.96

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Solution

The fourth proportional to 30,106.58, 45,135.18 and 11,375.96 is: 17,054.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,106.58 : 45,135.18 = 11,375.96 : x
  2. Step 2: Convert to fraction form
    30,106.58/45,135.18 = 11,375.96/x
  3. Step 3: Cross multiply
    30,106.58x = 45,135.18 × 11,375.96
  4. Step 4: Simplify right side
    30,106.58x = 513,455,776.60
  5. Step 5: Solve for x
    x = 513,455,776.60/30,106.58
  6. Step 6: Final answer
    x = 17,054.61

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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.