Home / 38,639.61-57,959.46-12,346.38

Finding the Fourth Proportional to 38,639.61, 57,959.46 and 12,346.38

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Solution

The fourth proportional to 38,639.61, 57,959.46 and 12,346.38 is: 18,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639.61 : 57,959.46 = 12,346.38 : x
  2. Step 2: Convert to fraction form
    38,639.61/57,959.46 = 12,346.38/x
  3. Step 3: Cross multiply
    38,639.61x = 57,959.46 × 12,346.38
  4. Step 4: Simplify right side
    38,639.61x = 715,589,517.75
  5. Step 5: Solve for x
    x = 715,589,517.75/38,639.61
  6. Step 6: Final answer
    x = 18,519.58

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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.