Home / 20,539.38-28,344.75-12,048

Finding the Fourth Proportional to 20,539.38, 28,344.75 and 12,048

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Solution

The fourth proportional to 20,539.38, 28,344.75 and 12,048 is: 16,626.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539.38 : 28,344.75 = 12,048 : x
  2. Step 2: Convert to fraction form
    20,539.38/28,344.75 = 12,048/x
  3. Step 3: Cross multiply
    20,539.38x = 28,344.75 × 12,048
  4. Step 4: Simplify right side
    20,539.38x = 341,497,548
  5. Step 5: Solve for x
    x = 341,497,548/20,539.38
  6. Step 6: Final answer
    x = 16,626.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.