Home / 28,699.68-43,052.82-7,640.01

Finding the Fourth Proportional to 28,699.68, 43,052.82 and 7,640.01

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Solution

The fourth proportional to 28,699.68, 43,052.82 and 7,640.01 is: 11,460.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.68 : 43,052.82 = 7,640.01 : x
  2. Step 2: Convert to fraction form
    28,699.68/43,052.82 = 7,640.01/x
  3. Step 3: Cross multiply
    28,699.68x = 43,052.82 × 7,640.01
  4. Step 4: Simplify right side
    28,699.68x = 328,923,975.33
  5. Step 5: Solve for x
    x = 328,923,975.33/28,699.68
  6. Step 6: Final answer
    x = 11,460.89

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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.