Home / 28,984.80-39,997.12-16,410.40

Finding the Fourth Proportional to 28,984.80, 39,997.12 and 16,410.40

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Solution

The fourth proportional to 28,984.80, 39,997.12 and 16,410.40 is: 22,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,984.80 : 39,997.12 = 16,410.40 : x
  2. Step 2: Convert to fraction form
    28,984.80/39,997.12 = 16,410.40/x
  3. Step 3: Cross multiply
    28,984.80x = 39,997.12 × 16,410.40
  4. Step 4: Simplify right side
    28,984.80x = 656,368,738.05
  5. Step 5: Solve for x
    x = 656,368,738.05/28,984.80
  6. Step 6: Final answer
    x = 22,645.27

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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.