Home / 28,616.36-42,930.62-8,894.44

Finding the Fourth Proportional to 28,616.36, 42,930.62 and 8,894.44

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Solution

The fourth proportional to 28,616.36, 42,930.62 and 8,894.44 is: 13,343.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,616.36 : 42,930.62 = 8,894.44 : x
  2. Step 2: Convert to fraction form
    28,616.36/42,930.62 = 8,894.44/x
  3. Step 3: Cross multiply
    28,616.36x = 42,930.62 × 8,894.44
  4. Step 4: Simplify right side
    28,616.36x = 381,843,823.75
  5. Step 5: Solve for x
    x = 381,843,823.75/28,616.36
  6. Step 6: Final answer
    x = 13,343.55

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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.