Home / 19,202.86-28,815.23-15,331.87

Finding the Fourth Proportional to 19,202.86, 28,815.23 and 15,331.87

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Solution

The fourth proportional to 19,202.86, 28,815.23 and 15,331.87 is: 23,006.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,202.86 : 28,815.23 = 15,331.87 : x
  2. Step 2: Convert to fraction form
    19,202.86/28,815.23 = 15,331.87/x
  3. Step 3: Cross multiply
    19,202.86x = 28,815.23 × 15,331.87
  4. Step 4: Simplify right side
    19,202.86x = 441,791,360.38
  5. Step 5: Solve for x
    x = 441,791,360.38/19,202.86
  6. Step 6: Final answer
    x = 23,006.54

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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.