Home / 20,634.93-28,472.83-11,680.54

Finding the Fourth Proportional to 20,634.93, 28,472.83 and 11,680.54

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Solution

The fourth proportional to 20,634.93, 28,472.83 and 11,680.54 is: 16,117.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.93 : 28,472.83 = 11,680.54 : x
  2. Step 2: Convert to fraction form
    20,634.93/28,472.83 = 11,680.54/x
  3. Step 3: Cross multiply
    20,634.93x = 28,472.83 × 11,680.54
  4. Step 4: Simplify right side
    20,634.93x = 332,577,929.34
  5. Step 5: Solve for x
    x = 332,577,929.34/20,634.93
  6. Step 6: Final answer
    x = 16,117.23

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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.