Home / 38,706.30-57,986.55-19,922.40

Finding the Fourth Proportional to 38,706.30, 57,986.55 and 19,922.40

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Solution

The fourth proportional to 38,706.30, 57,986.55 and 19,922.40 is: 29,846.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,706.30 : 57,986.55 = 19,922.40 : x
  2. Step 2: Convert to fraction form
    38,706.30/57,986.55 = 19,922.40/x
  3. Step 3: Cross multiply
    38,706.30x = 57,986.55 × 19,922.40
  4. Step 4: Simplify right side
    38,706.30x = 1,155,231,243.72
  5. Step 5: Solve for x
    x = 1,155,231,243.72/38,706.30
  6. Step 6: Final answer
    x = 29,846.08

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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.