Home / 28,982.20-39,992.10-16,233.60

Finding the Fourth Proportional to 28,982.20, 39,992.10 and 16,233.60

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Solution

The fourth proportional to 28,982.20, 39,992.10 and 16,233.60 is: 22,400.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,982.20 : 39,992.10 = 16,233.60 : x
  2. Step 2: Convert to fraction form
    28,982.20/39,992.10 = 16,233.60/x
  3. Step 3: Cross multiply
    28,982.20x = 39,992.10 × 16,233.60
  4. Step 4: Simplify right side
    28,982.20x = 649,215,754.56
  5. Step 5: Solve for x
    x = 649,215,754.56/28,982.20
  6. Step 6: Final answer
    x = 22,400.50

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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.