Home / 28,558.55-39,410.80-15,983.30

Finding the Fourth Proportional to 28,558.55, 39,410.80 and 15,983.30

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Solution

The fourth proportional to 28,558.55, 39,410.80 and 15,983.30 is: 22,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558.55 : 39,410.80 = 15,983.30 : x
  2. Step 2: Convert to fraction form
    28,558.55/39,410.80 = 15,983.30/x
  3. Step 3: Cross multiply
    28,558.55x = 39,410.80 × 15,983.30
  4. Step 4: Simplify right side
    28,558.55x = 629,914,698.21
  5. Step 5: Solve for x
    x = 629,914,698.21/28,558.55
  6. Step 6: Final answer
    x = 22,056.95

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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.