Home / 38,320.20-57,482.10-12,025.80

Finding the Fourth Proportional to 38,320.20, 57,482.10 and 12,025.80

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Solution

The fourth proportional to 38,320.20, 57,482.10 and 12,025.80 is: 18,039.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,320.20 : 57,482.10 = 12,025.80 : x
  2. Step 2: Convert to fraction form
    38,320.20/57,482.10 = 12,025.80/x
  3. Step 3: Cross multiply
    38,320.20x = 57,482.10 × 12,025.80
  4. Step 4: Simplify right side
    38,320.20x = 691,268,238.18
  5. Step 5: Solve for x
    x = 691,268,238.18/38,320.20
  6. Step 6: Final answer
    x = 18,039.26

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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.