Home / 20,013.75-29,996.69-8,907.89

Finding the Fourth Proportional to 20,013.75, 29,996.69 and 8,907.89

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Solution

The fourth proportional to 20,013.75, 29,996.69 and 8,907.89 is: 13,351.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.75 : 29,996.69 = 8,907.89 : x
  2. Step 2: Convert to fraction form
    20,013.75/29,996.69 = 8,907.89/x
  3. Step 3: Cross multiply
    20,013.75x = 29,996.69 × 8,907.89
  4. Step 4: Simplify right side
    20,013.75x = 267,207,020.36
  5. Step 5: Solve for x
    x = 267,207,020.36/20,013.75
  6. Step 6: Final answer
    x = 13,351.17

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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.