Home / 28,557.87-39,409.85-15,982.62

Finding the Fourth Proportional to 28,557.87, 39,409.85 and 15,982.62

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Solution

The fourth proportional to 28,557.87, 39,409.85 and 15,982.62 is: 22,056.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557.87 : 39,409.85 = 15,982.62 : x
  2. Step 2: Convert to fraction form
    28,557.87/39,409.85 = 15,982.62/x
  3. Step 3: Cross multiply
    28,557.87x = 39,409.85 × 15,982.62
  4. Step 4: Simplify right side
    28,557.87x = 629,872,439.78
  5. Step 5: Solve for x
    x = 629,872,439.78/28,557.87
  6. Step 6: Final answer
    x = 22,056.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.