Home / 36,619.12-54,928.68-8,916.88

Finding the Fourth Proportional to 36,619.12, 54,928.68 and 8,916.88

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Solution

The fourth proportional to 36,619.12, 54,928.68 and 8,916.88 is: 13,375.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,619.12 : 54,928.68 = 8,916.88 : x
  2. Step 2: Convert to fraction form
    36,619.12/54,928.68 = 8,916.88/x
  3. Step 3: Cross multiply
    36,619.12x = 54,928.68 × 8,916.88
  4. Step 4: Simplify right side
    36,619.12x = 489,792,448.12
  5. Step 5: Solve for x
    x = 489,792,448.12/36,619.12
  6. Step 6: Final answer
    x = 13,375.32

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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.