Home / 28,977.20-39,998.04-17,039.96

Finding the Fourth Proportional to 28,977.20, 39,998.04 and 17,039.96

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Solution

The fourth proportional to 28,977.20, 39,998.04 and 17,039.96 is: 23,520.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.20 : 39,998.04 = 17,039.96 : x
  2. Step 2: Convert to fraction form
    28,977.20/39,998.04 = 17,039.96/x
  3. Step 3: Cross multiply
    28,977.20x = 39,998.04 × 17,039.96
  4. Step 4: Simplify right side
    28,977.20x = 681,565,001.68
  5. Step 5: Solve for x
    x = 681,565,001.68/28,977.20
  6. Step 6: Final answer
    x = 23,520.73

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1.5x scale

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.