Home / 22,571.40-33,857.61-7,780.11

Finding the Fourth Proportional to 22,571.40, 33,857.61 and 7,780.11

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Solution

The fourth proportional to 22,571.40, 33,857.61 and 7,780.11 is: 11,670.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,571.40 : 33,857.61 = 7,780.11 : x
  2. Step 2: Convert to fraction form
    22,571.40/33,857.61 = 7,780.11/x
  3. Step 3: Cross multiply
    22,571.40x = 33,857.61 × 7,780.11
  4. Step 4: Simplify right side
    22,571.40x = 263,415,930.14
  5. Step 5: Solve for x
    x = 263,415,930.14/22,571.40
  6. Step 6: Final answer
    x = 11,670.34

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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.