Home / 28,962.66-43,395.39-20,175.78

Finding the Fourth Proportional to 28,962.66, 43,395.39 and 20,175.78

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Solution

The fourth proportional to 28,962.66, 43,395.39 and 20,175.78 is: 30,229.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,962.66 : 43,395.39 = 20,175.78 : x
  2. Step 2: Convert to fraction form
    28,962.66/43,395.39 = 20,175.78/x
  3. Step 3: Cross multiply
    28,962.66x = 43,395.39 × 20,175.78
  4. Step 4: Simplify right side
    28,962.66x = 875,535,841.65
  5. Step 5: Solve for x
    x = 875,535,841.65/28,962.66
  6. Step 6: Final answer
    x = 30,229.81

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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.