Home / 28,388.38-42,575.82-12,584.74

Finding the Fourth Proportional to 28,388.38, 42,575.82 and 12,584.74

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Solution

The fourth proportional to 28,388.38, 42,575.82 and 12,584.74 is: 18,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,388.38 : 42,575.82 = 12,584.74 : x
  2. Step 2: Convert to fraction form
    28,388.38/42,575.82 = 12,584.74/x
  3. Step 3: Cross multiply
    28,388.38x = 42,575.82 × 12,584.74
  4. Step 4: Simplify right side
    28,388.38x = 535,805,624.99
  5. Step 5: Solve for x
    x = 535,805,624.99/28,388.38
  6. Step 6: Final answer
    x = 18,874.12

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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.