Home / 38,505.12-57,787.92-19,784.40

Finding the Fourth Proportional to 38,505.12, 57,787.92 and 19,784.40

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Solution

The fourth proportional to 38,505.12, 57,787.92 and 19,784.40 is: 29,692.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,505.12 : 57,787.92 = 19,784.40 : x
  2. Step 2: Convert to fraction form
    38,505.12/57,787.92 = 19,784.40/x
  3. Step 3: Cross multiply
    38,505.12x = 57,787.92 × 19,784.40
  4. Step 4: Simplify right side
    38,505.12x = 1,143,299,324.45
  5. Step 5: Solve for x
    x = 1,143,299,324.45/38,505.12
  6. Step 6: Final answer
    x = 29,692.14

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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.