Home / 38,511.92-57,775.08-12,209.60

Finding the Fourth Proportional to 38,511.92, 57,775.08 and 12,209.60

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Solution

The fourth proportional to 38,511.92, 57,775.08 and 12,209.60 is: 18,316.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.92 : 57,775.08 = 12,209.60 : x
  2. Step 2: Convert to fraction form
    38,511.92/57,775.08 = 12,209.60/x
  3. Step 3: Cross multiply
    38,511.92x = 57,775.08 × 12,209.60
  4. Step 4: Simplify right side
    38,511.92x = 705,410,616.77
  5. Step 5: Solve for x
    x = 705,410,616.77/38,511.92
  6. Step 6: Final answer
    x = 18,316.68

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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.