Home / 38,382.76-57,490.80-18,619.75

Finding the Fourth Proportional to 38,382.76, 57,490.80 and 18,619.75

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Solution

The fourth proportional to 38,382.76, 57,490.80 and 18,619.75 is: 27,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,382.76 : 57,490.80 = 18,619.75 : x
  2. Step 2: Convert to fraction form
    38,382.76/57,490.80 = 18,619.75/x
  3. Step 3: Cross multiply
    38,382.76x = 57,490.80 × 18,619.75
  4. Step 4: Simplify right side
    38,382.76x = 1,070,464,323.30
  5. Step 5: Solve for x
    x = 1,070,464,323.30/38,382.76
  6. Step 6: Final answer
    x = 27,889.20

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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.