Home / 28,336.88-42,512.04-8,616.56

Finding the Fourth Proportional to 28,336.88, 42,512.04 and 8,616.56

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Solution

The fourth proportional to 28,336.88, 42,512.04 and 8,616.56 is: 12,926.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.88 : 42,512.04 = 8,616.56 : x
  2. Step 2: Convert to fraction form
    28,336.88/42,512.04 = 8,616.56/x
  3. Step 3: Cross multiply
    28,336.88x = 42,512.04 × 8,616.56
  4. Step 4: Simplify right side
    28,336.88x = 366,307,543.38
  5. Step 5: Solve for x
    x = 366,307,543.38/28,336.88
  6. Step 6: Final answer
    x = 12,926.88

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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.