Home / 28,694.64-39,582.36-18,086.88

Finding the Fourth Proportional to 28,694.64, 39,582.36 and 18,086.88

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Solution

The fourth proportional to 28,694.64, 39,582.36 and 18,086.88 is: 24,949.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,694.64 : 39,582.36 = 18,086.88 : x
  2. Step 2: Convert to fraction form
    28,694.64/39,582.36 = 18,086.88/x
  3. Step 3: Cross multiply
    28,694.64x = 39,582.36 × 18,086.88
  4. Step 4: Simplify right side
    28,694.64x = 715,921,395.44
  5. Step 5: Solve for x
    x = 715,921,395.44/28,694.64
  6. Step 6: Final answer
    x = 24,949.66

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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.