Home / 20,549.52-28,358.46-11,351.34

Finding the Fourth Proportional to 20,549.52, 28,358.46 and 11,351.34

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Solution

The fourth proportional to 20,549.52, 28,358.46 and 11,351.34 is: 15,664.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.52 : 28,358.46 = 11,351.34 : x
  2. Step 2: Convert to fraction form
    20,549.52/28,358.46 = 11,351.34/x
  3. Step 3: Cross multiply
    20,549.52x = 28,358.46 × 11,351.34
  4. Step 4: Simplify right side
    20,549.52x = 321,906,521.34
  5. Step 5: Solve for x
    x = 321,906,521.34/20,549.52
  6. Step 6: Final answer
    x = 15,664.92

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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.