Home / 28,772.60-43,155.39-7,714.22

Finding the Fourth Proportional to 28,772.60, 43,155.39 and 7,714.22

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Solution

The fourth proportional to 28,772.60, 43,155.39 and 7,714.22 is: 11,570.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772.60 : 43,155.39 = 7,714.22 : x
  2. Step 2: Convert to fraction form
    28,772.60/43,155.39 = 7,714.22/x
  3. Step 3: Cross multiply
    28,772.60x = 43,155.39 × 7,714.22
  4. Step 4: Simplify right side
    28,772.60x = 332,910,172.65
  5. Step 5: Solve for x
    x = 332,910,172.65/28,772.60
  6. Step 6: Final answer
    x = 11,570.39

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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.