Home / 38,511.15-57,772.80-12,218.55

Finding the Fourth Proportional to 38,511.15, 57,772.80 and 12,218.55

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Solution

The fourth proportional to 38,511.15, 57,772.80 and 12,218.55 is: 18,329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.15 : 57,772.80 = 12,218.55 : x
  2. Step 2: Convert to fraction form
    38,511.15/57,772.80 = 12,218.55/x
  3. Step 3: Cross multiply
    38,511.15x = 57,772.80 × 12,218.55
  4. Step 4: Simplify right side
    38,511.15x = 705,899,845.44
  5. Step 5: Solve for x
    x = 705,899,845.44/38,511.15
  6. Step 6: Final answer
    x = 18,329.75

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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.