Home / 28,274.22-42,425.91-11,646.54

Finding the Fourth Proportional to 28,274.22, 42,425.91 and 11,646.54

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Solution

The fourth proportional to 28,274.22, 42,425.91 and 11,646.54 is: 17,475.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,274.22 : 42,425.91 = 11,646.54 : x
  2. Step 2: Convert to fraction form
    28,274.22/42,425.91 = 11,646.54/x
  3. Step 3: Cross multiply
    28,274.22x = 42,425.91 × 11,646.54
  4. Step 4: Simplify right side
    28,274.22x = 494,115,057.85
  5. Step 5: Solve for x
    x = 494,115,057.85/28,274.22
  6. Step 6: Final answer
    x = 17,475.82

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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.