Home / 28,714.79-43,074.62-7,658.03

Finding the Fourth Proportional to 28,714.79, 43,074.62 and 7,658.03

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Solution

The fourth proportional to 28,714.79, 43,074.62 and 7,658.03 is: 11,487.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,714.79 : 43,074.62 = 7,658.03 : x
  2. Step 2: Convert to fraction form
    28,714.79/43,074.62 = 7,658.03/x
  3. Step 3: Cross multiply
    28,714.79x = 43,074.62 × 7,658.03
  4. Step 4: Simplify right side
    28,714.79x = 329,866,478.54
  5. Step 5: Solve for x
    x = 329,866,478.54/28,714.79
  6. Step 6: Final answer
    x = 11,487.69

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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.