Home / 20,558.54-30,841.02-8,712.33

Finding the Fourth Proportional to 20,558.54, 30,841.02 and 8,712.33

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Solution

The fourth proportional to 20,558.54, 30,841.02 and 8,712.33 is: 13,069.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.54 : 30,841.02 = 8,712.33 : x
  2. Step 2: Convert to fraction form
    20,558.54/30,841.02 = 8,712.33/x
  3. Step 3: Cross multiply
    20,558.54x = 30,841.02 × 8,712.33
  4. Step 4: Simplify right side
    20,558.54x = 268,697,143.78
  5. Step 5: Solve for x
    x = 268,697,143.78/20,558.54
  6. Step 6: Final answer
    x = 13,069.86

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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.