Home / 38,405.55-57,621.84-19,694.40

Finding the Fourth Proportional to 38,405.55, 57,621.84 and 19,694.40

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Solution

The fourth proportional to 38,405.55, 57,621.84 and 19,694.40 is: 29,548.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,405.55 : 57,621.84 = 19,694.40 : x
  2. Step 2: Convert to fraction form
    38,405.55/57,621.84 = 19,694.40/x
  3. Step 3: Cross multiply
    38,405.55x = 57,621.84 × 19,694.40
  4. Step 4: Simplify right side
    38,405.55x = 1,134,827,565.70
  5. Step 5: Solve for x
    x = 1,134,827,565.70/38,405.55
  6. Step 6: Final answer
    x = 29,548.53

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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.