Home / 20,732.24-28,609.92-11,300.80

Finding the Fourth Proportional to 20,732.24, 28,609.92 and 11,300.80

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Solution

The fourth proportional to 20,732.24, 28,609.92 and 11,300.80 is: 15,594.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.24 : 28,609.92 = 11,300.80 : x
  2. Step 2: Convert to fraction form
    20,732.24/28,609.92 = 11,300.80/x
  3. Step 3: Cross multiply
    20,732.24x = 28,609.92 × 11,300.80
  4. Step 4: Simplify right side
    20,732.24x = 323,314,983.94
  5. Step 5: Solve for x
    x = 323,314,983.94/20,732.24
  6. Step 6: Final answer
    x = 15,594.79

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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.