Home / 38,541.32-57,765.96-19,830.32

Finding the Fourth Proportional to 38,541.32, 57,765.96 and 19,830.32

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Solution

The fourth proportional to 38,541.32, 57,765.96 and 19,830.32 is: 29,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,541.32 : 57,765.96 = 19,830.32 : x
  2. Step 2: Convert to fraction form
    38,541.32/57,765.96 = 19,830.32/x
  3. Step 3: Cross multiply
    38,541.32x = 57,765.96 × 19,830.32
  4. Step 4: Simplify right side
    38,541.32x = 1,145,517,399.70
  5. Step 5: Solve for x
    x = 1,145,517,399.70/38,541.32
  6. Step 6: Final answer
    x = 29,721.80

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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.