Home / 30,115.12-45,175.76-10,393.62

Finding the Fourth Proportional to 30,115.12, 45,175.76 and 10,393.62

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Solution

The fourth proportional to 30,115.12, 45,175.76 and 10,393.62 is: 15,591.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115.12 : 45,175.76 = 10,393.62 : x
  2. Step 2: Convert to fraction form
    30,115.12/45,175.76 = 10,393.62/x
  3. Step 3: Cross multiply
    30,115.12x = 45,175.76 × 10,393.62
  4. Step 4: Simplify right side
    30,115.12x = 469,539,682.65
  5. Step 5: Solve for x
    x = 469,539,682.65/30,115.12
  6. Step 6: Final answer
    x = 15,591.49

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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.