Home / 28,854.06-43,274.79-11,078.70

Finding the Fourth Proportional to 28,854.06, 43,274.79 and 11,078.70

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Solution

The fourth proportional to 28,854.06, 43,274.79 and 11,078.70 is: 16,615.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,854.06 : 43,274.79 = 11,078.70 : x
  2. Step 2: Convert to fraction form
    28,854.06/43,274.79 = 11,078.70/x
  3. Step 3: Cross multiply
    28,854.06x = 43,274.79 × 11,078.70
  4. Step 4: Simplify right side
    28,854.06x = 479,428,415.97
  5. Step 5: Solve for x
    x = 479,428,415.97/28,854.06
  6. Step 6: Final answer
    x = 16,615.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.