Home / 30,631.16-45,936.60-11,909.84

Finding the Fourth Proportional to 30,631.16, 45,936.60 and 11,909.84

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Solution

The fourth proportional to 30,631.16, 45,936.60 and 11,909.84 is: 17,860.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,631.16 : 45,936.60 = 11,909.84 : x
  2. Step 2: Convert to fraction form
    30,631.16/45,936.60 = 11,909.84/x
  3. Step 3: Cross multiply
    30,631.16x = 45,936.60 × 11,909.84
  4. Step 4: Simplify right side
    30,631.16x = 547,097,556.14
  5. Step 5: Solve for x
    x = 547,097,556.14/30,631.16
  6. Step 6: Final answer
    x = 17,860.82

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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.