Home / 38,511.53-57,769.35-12,218.30

Finding the Fourth Proportional to 38,511.53, 57,769.35 and 12,218.30

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Solution

The fourth proportional to 38,511.53, 57,769.35 and 12,218.30 is: 18,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.53 : 57,769.35 = 12,218.30 : x
  2. Step 2: Convert to fraction form
    38,511.53/57,769.35 = 12,218.30/x
  3. Step 3: Cross multiply
    38,511.53x = 57,769.35 × 12,218.30
  4. Step 4: Simplify right side
    38,511.53x = 705,843,249.11
  5. Step 5: Solve for x
    x = 705,843,249.11/38,511.53
  6. Step 6: Final answer
    x = 18,328.10

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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.