Home / 30,421.73-45,632.57-11,449.91

Finding the Fourth Proportional to 30,421.73, 45,632.57 and 11,449.91

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Solution

The fourth proportional to 30,421.73, 45,632.57 and 11,449.91 is: 17,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,421.73 : 45,632.57 = 11,449.91 : x
  2. Step 2: Convert to fraction form
    30,421.73/45,632.57 = 11,449.91/x
  3. Step 3: Cross multiply
    30,421.73x = 45,632.57 × 11,449.91
  4. Step 4: Simplify right side
    30,421.73x = 522,488,619.72
  5. Step 5: Solve for x
    x = 522,488,619.72/30,421.73
  6. Step 6: Final answer
    x = 17,174.85

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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.