Home / 20,676.48-28,523.52-12,287.04

Finding the Fourth Proportional to 20,676.48, 28,523.52 and 12,287.04

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Solution

The fourth proportional to 20,676.48, 28,523.52 and 12,287.04 is: 16,950.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.48 : 28,523.52 = 12,287.04 : x
  2. Step 2: Convert to fraction form
    20,676.48/28,523.52 = 12,287.04/x
  3. Step 3: Cross multiply
    20,676.48x = 28,523.52 × 12,287.04
  4. Step 4: Simplify right side
    20,676.48x = 350,469,631.18
  5. Step 5: Solve for x
    x = 350,469,631.18/20,676.48
  6. Step 6: Final answer
    x = 16,950.16

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1.5x scale

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.