Home / 28,964.07-39,965.78-16,217.81

Finding the Fourth Proportional to 28,964.07, 39,965.78 and 16,217.81

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Solution

The fourth proportional to 28,964.07, 39,965.78 and 16,217.81 is: 22,377.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.07 : 39,965.78 = 16,217.81 : x
  2. Step 2: Convert to fraction form
    28,964.07/39,965.78 = 16,217.81/x
  3. Step 3: Cross multiply
    28,964.07x = 39,965.78 × 16,217.81
  4. Step 4: Simplify right side
    28,964.07x = 648,157,145.62
  5. Step 5: Solve for x
    x = 648,157,145.62/28,964.07
  6. Step 6: Final answer
    x = 22,377.97

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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.