Home / 28,513.46-42,775.88-8,791.26

Finding the Fourth Proportional to 28,513.46, 42,775.88 and 8,791.26

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Solution

The fourth proportional to 28,513.46, 42,775.88 and 8,791.26 is: 13,188.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.46 : 42,775.88 = 8,791.26 : x
  2. Step 2: Convert to fraction form
    28,513.46/42,775.88 = 8,791.26/x
  3. Step 3: Cross multiply
    28,513.46x = 42,775.88 × 8,791.26
  4. Step 4: Simplify right side
    28,513.46x = 376,053,838.85
  5. Step 5: Solve for x
    x = 376,053,838.85/28,513.46
  6. Step 6: Final answer
    x = 13,188.65

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1.5x scale

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.