Home / 38,385.80-57,578.70-12,093.20

Finding the Fourth Proportional to 38,385.80, 57,578.70 and 12,093.20

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Solution

The fourth proportional to 38,385.80, 57,578.70 and 12,093.20 is: 18,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,385.80 : 57,578.70 = 12,093.20 : x
  2. Step 2: Convert to fraction form
    38,385.80/57,578.70 = 12,093.20/x
  3. Step 3: Cross multiply
    38,385.80x = 57,578.70 × 12,093.20
  4. Step 4: Simplify right side
    38,385.80x = 696,310,734.84
  5. Step 5: Solve for x
    x = 696,310,734.84/38,385.80
  6. Step 6: Final answer
    x = 18,139.80

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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.