Home / 28,982.13-39,995.33-16,406.88

Finding the Fourth Proportional to 28,982.13, 39,995.33 and 16,406.88

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Solution

The fourth proportional to 28,982.13, 39,995.33 and 16,406.88 is: 22,641.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,982.13 : 39,995.33 = 16,406.88 : x
  2. Step 2: Convert to fraction form
    28,982.13/39,995.33 = 16,406.88/x
  3. Step 3: Cross multiply
    28,982.13x = 39,995.33 × 16,406.88
  4. Step 4: Simplify right side
    28,982.13x = 656,198,579.87
  5. Step 5: Solve for x
    x = 656,198,579.87/28,982.13
  6. Step 6: Final answer
    x = 22,641.49

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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.