Home / 19,338.40-29,007.96-15,489.28

Finding the Fourth Proportional to 19,338.40, 29,007.96 and 15,489.28

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Solution

The fourth proportional to 19,338.40, 29,007.96 and 15,489.28 is: 23,234.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,338.40 : 29,007.96 = 15,489.28 : x
  2. Step 2: Convert to fraction form
    19,338.40/29,007.96 = 15,489.28/x
  3. Step 3: Cross multiply
    19,338.40x = 29,007.96 × 15,489.28
  4. Step 4: Simplify right side
    19,338.40x = 449,312,414.67
  5. Step 5: Solve for x
    x = 449,312,414.67/19,338.40
  6. Step 6: Final answer
    x = 23,234.21

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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.