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Finding the Fourth Proportional to 20,552.94, 30,829.41 and 8,708.58

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Solution

The fourth proportional to 20,552.94, 30,829.41 and 8,708.58 is: 13,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.94 : 30,829.41 = 8,708.58 : x
  2. Step 2: Convert to fraction form
    20,552.94/30,829.41 = 8,708.58/x
  3. Step 3: Cross multiply
    20,552.94x = 30,829.41 × 8,708.58
  4. Step 4: Simplify right side
    20,552.94x = 268,480,383.34
  5. Step 5: Solve for x
    x = 268,480,383.34/20,552.94
  6. Step 6: Final answer
    x = 13,062.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.