Home / 30,284.58-45,456.03-28,374.66

Finding the Fourth Proportional to 30,284.58, 45,456.03 and 28,374.66

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Solution

The fourth proportional to 30,284.58, 45,456.03 and 28,374.66 is: 42,589.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,284.58 : 45,456.03 = 28,374.66 : x
  2. Step 2: Convert to fraction form
    30,284.58/45,456.03 = 28,374.66/x
  3. Step 3: Cross multiply
    30,284.58x = 45,456.03 × 28,374.66
  4. Step 4: Simplify right side
    30,284.58x = 1,289,799,396.20
  5. Step 5: Solve for x
    x = 1,289,799,396.20/30,284.58
  6. Step 6: Final answer
    x = 42,589.31

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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.