Home / 20,292.91-28,004.82-11,340.44

Finding the Fourth Proportional to 20,292.91, 28,004.82 and 11,340.44

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Solution

The fourth proportional to 20,292.91, 28,004.82 and 11,340.44 is: 15,650.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.91 : 28,004.82 = 11,340.44 : x
  2. Step 2: Convert to fraction form
    20,292.91/28,004.82 = 11,340.44/x
  3. Step 3: Cross multiply
    20,292.91x = 28,004.82 × 11,340.44
  4. Step 4: Simplify right side
    20,292.91x = 317,586,784.19
  5. Step 5: Solve for x
    x = 317,586,784.19/20,292.91
  6. Step 6: Final answer
    x = 15,650.14

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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.