Home / 20,664.20-28,516.26-11,233

Finding the Fourth Proportional to 20,664.20, 28,516.26 and 11,233

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Solution

The fourth proportional to 20,664.20, 28,516.26 and 11,233 is: 15,501.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.20 : 28,516.26 = 11,233 : x
  2. Step 2: Convert to fraction form
    20,664.20/28,516.26 = 11,233/x
  3. Step 3: Cross multiply
    20,664.20x = 28,516.26 × 11,233
  4. Step 4: Simplify right side
    20,664.20x = 320,323,148.58
  5. Step 5: Solve for x
    x = 320,323,148.58/20,664.20
  6. Step 6: Final answer
    x = 15,501.36

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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.